No products are perfect, but for the use case of "more technical than average user" looking for better quality than your typical home-grade gear, I have not found anything better or more polished.
Critique about it on their forums is removed by moderators.
Of course, if you want a locally managed device and have a relatively simple topology there are plenty of other brands and products out there. I personally love the cloud sign in &. remote provisioning.
The "dream machine" thing I don't get. I do like their Unifi AP line, though.
I purchased several pieces and was planning to purchase more until I found out about their vendor lock-in aspects, and returned it all. It's really stupid because they don't have to compensate for anything with lock-in considering their high quality at their price point.
Assuming it does everything it says it will on the tin, of course.
Can't comment on issues have been getting, but I only have good things to say about mine. It's not perfect and the learning curve can be steep, but it's miles ahead of any other routers I've used before. The only thing that came close was when I flashed dd-wrt on my old Linksys.
If I was renting again, I’d consider using tp-links gear.