We stayed in the Hotel Eden for two weeks this August. The hotel's decor is a little dated but everywhere is spotlessly clean and the staff are extremely nice and helpful. Our room was a decent size with a nice balcony and a tv. The pool is set in gardens so even if children are splashing you can still sunbathe and relax on the very comfy sun loungers!
Breakfast was included in our stay and it was a good continental buffet and we got up for it every morning.
The hotel was a short (flat) walk down to the town of Torbole, which we enjoyed and needed after our food and wine!
Torbole itself is a quiet enough town, there were three bars and a handful of restaurants, but the food and drink is good and reasonably priced.
There is a really good walk up along the mountains surrounding Lake Garda starting behind the tourist office in the town. It was tricky at first but we were really glad we did it for the views were amazing, although it is not advertised or sign posted, we saw it in a magazine - ask at the tourist office it's well worth doing!
We hired a car in Riva for 3 days and visited Innsbruck, Milan and Venice, all of which are well worth seeing and in easy enough travel distance from Torbole!