I really like that you can filter by people most likely to pick up, and I have also found that people just generally pick up more often than if I call from one of the competing dialers. Reps at Koncert are very helpful, quick to respond & happy to jump on a call if needed.

Couldn't be easier to use. Review collected by and hosted on G2.com.

No downside other than now I have no excuse not to cold call haha Review collected by and hosted on G2.com.

Koncert integrates seamlessly with HubSpot and makes outbound prospecting fast and consistent. But what truly stands out is the Customer Success team, they are hands-down one of the most responsive I’ve worked with. Whether it’s via email or through their Office Hours, I’ve always gotten clear, fast guidance. It genuinely feels like they’re invested in our success.

From a performance standpoint, the low latency makes a huge difference. You’re connected almost instantly, avoiding that awkward “hello, hello?” delay. They’ve also been consistently improving the platform, adding smart features and working to differentiate from other dialers in the market. It’s clear they’re building with feedback in mind. Review collected by and hosted on G2.com.

Honestly, there’s nothing major to dislike. The product delivers on what it promises. If anything, I’d love to see future enhancements like native scrubbing or enriched contact previews—maybe even something like an embedded LinkedIn iframe—so I can stay in the zone without needing to switch tabs mid-call. But those are just forward-looking ideas, not drawbacks. Review collected by and hosted on G2.com.

Koncert is helpful in calling high volumes of users, quickly, very helpful for call recordings as well generating the Ai summary of what the conversation was regarding. Review collected by and hosted on G2.com.

Koncert can randomly stop working, and be a bit buggy. Also, I am not sure if it is always using #s that don't get marked as Spam. Hard to find prior conversations as well when you don't remember the name of the contact. Review collected by and hosted on G2.com.

Strong CRM integration that keeps call data synced automatically

AI dialers that reduce idle time and boost connect rates

Caller ID Management improves pickup rates with prospects

Support team is responsive and helpful Review collected by and hosted on G2.com.

User interface could be more modern and intuitive

Initial onboarding and campaign setup take time to learn

Reporting dashboards lack flexibility for deeper insights Review collected by and hosted on G2.com.

It creates tons of efficiencies and helps the team Review collected by and hosted on G2.com.

I think it could have better ways to create reports from lists that have already been uploaded Review collected by and hosted on G2.com.

It's an amazing priced tool that helped me book 34 meetings from just 5 hours of calling per week in March of 2025! Any question I had, the customer support team nailed it fast. And I used to use connect and sell's dialer. This is 10x better and way better on my wallet. This is better than Nooks too. I'm connecting with 1 in 5 dials all week long. This week I had 1 in 3 dials. The secret is their caller ID hygiene. I was integrated into Hubspot and dialing within minutes. I use it every day now and reached my $10k MRR under 60 days. Review collected by and hosted on G2.com.

I wish I had found them sooner. There is absolutely nothing I don't like. It's better and more capable than Nooks too. Review collected by and hosted on G2.com.

Koncert streamline our sales outreach and engagement

All form of marketing communication and business engagement are covered using this app

We have automated the email sequence and call process

The visible dashboard ensure prioritization in tracking performance and lead enhancement Review collected by and hosted on G2.com.

Sales rep or administrators finds Koncert having a steady learning experience that needs high training

Koncert lacks powerful integration support Review collected by and hosted on G2.com.

Dialing at scale, easy to use, saving me tons of money. Review collected by and hosted on G2.com.

A little confusing at first but aside from that it's the best dialer. Review collected by and hosted on G2.com.

Premium, personalized onboarding and ongoing support provided by the team. Review collected by and hosted on G2.com.

Occasionally noticed some lag or delays between calls, which can slightly impact the flow of conversations. Review collected by and hosted on G2.com.

I appreciate the dialer and several of the features, and I also find the team to be helpful. Review collected by and hosted on G2.com.

I wish it integrated more smoothly with HubSpot, although it's possible that my issues are actually with HubSpot itself rather than this product. Review collected by and hosted on G2.com.