Here's a list of the power planes that I have owned, and a brief review of each. Maybe you'll find this useful if you're thinking of buying one of these kits.
I've expanded this list somewhat to also include a few planes that I have flown, but don't own, and tips that friends have told me about different models.
Built to plans, the wire landing gear has the forward wire fixed to the fuselage, while the rear wire simply rests across the bottom of the fuse and is held against the fuse with rubber bands attached to the forward wing dowels. The problem is that this allows for excessive slop, enabling the rear landing gear wire to actually move from side to side. His solution was to eliminate the rubber bands and wrap some kevlar thread from the dowel to rear wire, then epoxy the kevlar. This seem to work great, as the little bipe now tracks straight down the runway.
My friend built one, and I flew it a few times. It wasn't quite stock, as he but a .25 in it (which required lengthening the nose a bit). I didn't notice any particularly bad habits, though I never really slowed it down enough to find out the stall characteristics. The plane is pretty heavy, but it is fast with the .25. Landings were a bit fast, but touch downs are nice, as the plane seems to stick to the ground as soon as the wheels make contact.
Flight performance with a .15 would probably be mediocre in this .10-.15 sized plane. I'm sure it would be a dog with a .10