I had one built-in last year. Love it.
I wish we'd floated it so people can cook on each side (it's in a corner), but we didn't want to sacrifice views into the pool area.
I've had a laser thermometer show 620, which is 100 more than they advertise. Not sure if that is a setup issue or if they list low to account for yankee weather. That was on just over medium after running 40 minutes or so.
We love it. Still learning the ropes but it's used multiple meals a week.
Only downside if compared to others is also one of the selling points - the circle burners. With a rectangular grill you can only heat one side and use the other to warm. You also have the walls to help scoop.
As a circle you can slide food to the outside (or middle) to keep warm, but I think that is easier with a square surface.
Still no regrets. If you are choosing and can place it so people can cook at the same time on different sides it is a no brainer of the cost doesn't matter.
Staff - take out the trash.