Well, since this is a thread for people applying to/accepted to the class of 2018, it's more relevant to talk about the curriculum they will have, isn't it?
In fact, UTSW has sort of a combined curriculum with a more traditional subject-based MS1 and an integrated systems-based MS2. Compared to newer curricula at other schools, it has less small group learning, which can be either an advantage or a disadvantage depending on your preference. Also, compared to some newer curricula, it has fewer mandatory classes, which medical students I've talked to almost unanimously see as a great advantage.
To be honest, I like Baylor's curriculum with it's 1.5 years of integrated preclinical a lot more, and Baylor does have one of the highest median Step 1 (and Step 2) scores in the country.
So, the truth is, there are better schools and better curricula than that of UTSW. The other truth is, UTSW is still a great school (one of the doctors I know *loves* it and Parkland; she graduated from UTSW, did her residency in IM at Parkland, fellowship "in Boston" - a pseudomodest euphemism for MGH - and returned to Parkland as an attending) and for quite a few people it's their best school, so they may understandably get offended for someone criticizing their top choice.