I've got a Dell'Arte, though it's only 26.5" scale. There's really no difference in comfort, even with heavy strings, when they're set up properly, my opinion anyway. You tune 3-4 steps below standard, so the tension is very comfortable.
When I got it, the dealer had put lights on and tuned it to standard. Now that was difficult and uncomfortable and sounded like poo.
They are lap pianos. Here's some eye candy (my opinion, of course)- the only sunburst Dell'Arte Leadbelly made.
And it's brother 12ers-
