Terrible support. Buggy software, almost no updates.
What do you like best?
It looks nice, it's slow but it works most of the time.
What do you dislike?
Lots of little, very annoying bugs. Release cycle is super long, and there's barely anything new each time except themes. Yes, they try to sell you themes for an email client...
You buy the software, but they charge you 8$ per support request !
Basically you buy a supposedly production ready software, and then when things go wrong, you're no your own unless you pay up, and even then, your issue probably won't get fixed for a few more months.
What problems are you solving with the product? What benefits have you realized?
Nothing more than what an email client is supposed to do really.