Hi Dreamer:
I'm a TUCOM 4th year. Short and sweet:
First two years are fine, facilities range from excellent to adequate, faculty is very good and committed - something to do with the abundance of overqualified academics who just HAVE to live in the Bay Area. The students have decent morale and infect are fairly, er... feisty. The admin are well meaning but not all that effectual. Curriculum information is on the web site.
Third and fourth years are considerably sketchier. Like some osteo and most Caribbean schools, many students have to become somewhat nomadic. Quality core rotations are limited in quantity and quality in the Bay Area in particular. There is an internal 'Match' for core rotation sites, and you might wind up going to do core rotations in Vegas, Colorado, Michigan or assorted other places... a year after moving to Cali. Potentially character building.
SF Bay area is not very DO friendly, with the region bounded by UCSF, Stanford and UC Davis, all world class MD schools which are protective of their turf. That said, they are good places to do sub-I's and other hardcore rotations. Some of these difficulties may moderate in the future as DO's proliferate in the area...
Possibility of transfer: I suspect that if you are in good standing and your money is green, TUCOM will let you in. (Especially since several students were recently poached by MD schools...) Talk to TUCOM. Incidentally, I've already met a TUCOM 3rd year who transferred in from NYCOM at the end of 2nd year. So there's precedent there.
Residencies: TUCOM is new and has little track record. It's osteopathic. Those are both handicaps in the allopathic match. That said, if you are driven, have *excellent* board scores, interact well with sub-I preceptors - you'll go far in all but the most insanely competitive settings. TUCOM kids match all over the place - I've seen matches at Mayo, UCSF, Stanford, Highland ER, and yes, Harvard (I think that was Anesth)
Hit it hard and don't take no for an answer.