I like the simplicity for the user. There are great filters to help pick the best travel options for your trip. It's easy to manage our users and payment profiles. Review collected by and hosted on G2.com.
Paying a premium for every transaction, only to not get it back unless you follow up with support when the error was Perk's fault.
I've also had a few times where I've had to do a lot of legwork for customer support to finally help me and see that there was a better solution than giving us 80% back in credit.
I also dislike that you cannot track transactions by trip number, which makes tracking payments so much more difficult. Review collected by and hosted on G2.com.
