I like how easy it is to create a conference call. Review collected by and hosted on G2.com.
I don't like how people go straight to voicemail if you're on the other line. Review collected by and hosted on G2.com.
Last updated: Nov 01, 2026
| Time to go live | Relative frequency |
|---|---|
| Under one month | Most common |
| One to three months | Also reported |
| Three to six months | Also reported |
| Six months or longer | Less common |
I like how easy it is to create a conference call. Review collected by and hosted on G2.com.
I don't like how people go straight to voicemail if you're on the other line. Review collected by and hosted on G2.com.
While I do not know all the technical details, I know that this has provided us more robust security after prior issues. Review collected by and hosted on G2.com.
There is nothing to dislike in particular, other than perhaps the fairly hefty pricetag. Review collected by and hosted on G2.com.

Love the command line interface and logging. The logging is very useful for when issues are happening. Also the command line enables a lot of features and options for scripting when you have multiple firewalls. The pricing and product features are straightforward. VPN support and routing support were useful Review collected by and hosted on G2.com.
Out of the box does not have as many features as a Sonicwall or WatchGuard. The GUI, which can be enabled for users without command line knowledge, is slow and not always helpful when adding rules. Code and how you do NAT and firewalling changes drastically between versions and can be confusing when going between multiple firewalls, like in a MSP Review collected by and hosted on G2.com.
The firewall cisco is an established product in the market and therefore very stable. It has a solid network distribution and so it is very simple to renew service support contracts. Their TAC (support team) have a great knowledge of the product and always we received good support. Review collected by and hosted on G2.com.
To be quite popular, the product is highly targeted, including by government teams (eg NSA case with modified ASA firmware). Other manufacturers are investing in products that can act in various application layers, providing better visibility of the network. Review collected by and hosted on G2.com.
For the application itself, it gets the job done. It's a fairly light client and most users won't be bothered by it/notice it. Review collected by and hosted on G2.com.
During some Windows updates, it will stop the application from running on some users' machines. You will have to go in and set it to run as administrator and at a previous version of Windows. This was poorly looked at and caused a lot of unnecessary support calls. Review collected by and hosted on G2.com.
I like that I can access my desktop and other various applications through a non-work computer (my home computer, in-laws computer if I'm on vacation). Review collected by and hosted on G2.com.
Through various updates it seems that some of the buttons don't function as well as others - this may be an internal IT issue, but for example I have 4 or 5 options for a remote desktop, but only one of them actually works. Review collected by and hosted on G2.com.

Our company relies on security and uptime. We have had many trials and all have failed, except Cisco. Firewalls are built to last and can withstand a vigorous heavy stress test. Compatibility and upgrading to different models is always available. Configuring can be a little tricky but the command line and interface features make it a little bit easier, just will need help. Nevertheless, support is always a phone call away or also I found guides helpful. I like that their support is on top with assistance if ever needed. Parts ordered and installed at a moment's notice without any delays or issues. Review collected by and hosted on G2.com.
In the end, cost is always a factor but when it comes to hardware, software and reliability. Basically you get what you pay for. I would like to see it come down a notch when it compares to others. Hardware is not cheap. Some extra features always on next generation, so upgrading to new model can't become a pain. Review collected by and hosted on G2.com.
This is an easy tool that allows for employees to stay on direction during their work day. It also provides a great foundation for tech teams to use to eliminate problems that could arise. Review collected by and hosted on G2.com.
There is nothing at this time I can speak to disliking. We have only begun using this firewall system recently. Review collected by and hosted on G2.com.
We have deployed these across multiple customer sites for their powerful feature set, resiliency options and reliability. The newer versions with the subscription option for IDS/IPS are a real benefit. Review collected by and hosted on G2.com.
They do require advanced networking knowledge to deploy and manage, which is to be expected. They are not like the Meraki hardware that can be deployed automatically. Review collected by and hosted on G2.com.
Feature rich, ever expanding product line. Cisco continues to evolve the firewall product line to keep up to date with the ever changing evolution of internet. Review collected by and hosted on G2.com.
Licensing features can be expensive in order to get full protection Review collected by and hosted on G2.com.
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What is your experience with Cisco Secure Firewall Threat Defense Virtual, and how has it impacted your network security?
Averages based on real user reviews.
3 months
20 months
22%