Just ordered a SuperTuck this morning.
I had to find out for myself and do surely like the tuckable feature.
I had bought a tuckable for my 38 snubby a few years ago from High-Noon and by the time i recieved it (6+ months) I had finally purchased my first 1911 and never looked back. Ended up selling the holster to a friend after only trying it on once or twice.
Pricing and wait time are definite selling points.
I think the Tucker, though nicer looking, is twice the price and about 6 months wait-time.