I had them on my Wrangler and was not impressed with the adhesive. The panels would separate from the hardtop during the (Texas) Summer. Eventually, I trashed them. The sound-deadening was minimal but I will say they dispersed the heat from the hardtop quite well.
Most I've seen are either under the hood, cargo area, or installed externally on the back.
Under the hood will be limited to available space and ambient heat should be taken into consideration.
There'll be plenty of options available, I'm sure.
Getting caught in rain with cloth seats just once will make you question your decision. If you do opt for it, look for some good neoprene covers (inexpensive but effective).
Definitely depends on where you intend on parking and for how long. I DD my Rubicon without the roof & doors and the only issue I've encountered is the neighbors' cat. Unknowingly drove off with him in the cargo area (tonneau covered) - scared the **** out of both of us!