If you respect a PA-18-95 for what it is you'll have a great airplane to fly. They have a very light, sweet feel to them and are more comfortable than a PA-11 and especially more so than a J-3.
I fly one now and then that has two 18 gallon tanks. With a 5 gal per hour burn you can guess what kind of range it gets if you decide to fill it up. Figure 85-90 mph.
This airplane, although usually tail-end-Charlie, plays out here in the lake country with bigger engined 18's, 12's, Citabria's and Husky's with no problem. The owner is putting it on floats this summer. (I got my float rating in a 90 hp 18 with a largish instructor and it worked just fine).
Solo it's an excellent flying machine and loaded up it will work but really beware of shorter strips with trees/obstacles on hot days. In the winter it does just fine when loaded up.
It wont be a 150 hp Cub with flaps and wont pull you out of trouble on power like a bigger engined Cub can. But if you go into the deal knowing that, then you'll have a fun and quite capable airplane. (can't beat it running around the farm with the door open)
