Don't regret it one bit. I love the Moto Q. It does everything that I need and more.
I made it 48 hours, which is more then I made it with the Nokia E60 and the Tilt, with the Moto. Its back in a box at work and nobody else wants it, another one to add to the pile.
It works, and if somebody asked me who has never used a BB for a good email device, the Moto is excellent, indeed i would recommend it.
That said though its not nearly as quick as my BB at receiving and sending, i cant file messages as quickly into other folders, the GPS was slower then the BB one to do anything (and i am literally lost without my GPS) and just plain not as easy to move around with. It also was a little weird to be a windows device with no touch screen, kinda unusual.
Its not the devices fault, its just i have used BB for a while now and when you get the muscle memory of jumping around on them its difficult to duplicate on another device.
Oh well its horses for courses, what you're used to etc...