Their match list looks good, particularly for GI and hem/onc and nephro. Nephro isn't quite as hard to match into competitive places, b/c apparently nephro apps are down. Oh, pulm/critical care also matched really well - not surprising since it's a good residency and known for ball busting amount of ICU time, from what I've heard.
I would only go there if you are ready to get your balls busted with a lot of busy ICU and wards rotations...that has been their reputation for years. That might not be bad if you want to do something like pulm/critical care, cards or hospitalist. It might not be necessary if you want to do endocrine or allergy/immuno, particularly if the large amount of heavy duty hospital clinical time cuts into research time, since research tends to hold a lot of weight in getting in to fellowship for certain specialties. This is especially true of cardiology lately- their cards match is pretty good, particularly if the people wanted to stay in Texas, which might be the case. However, I wouldn't say their cards match is awesome for the reported level of difficulty of their residency program. It could be that they don't have a lot of research time, or that their cardiovascular medicine division isn't quite as well known as some of their other divisions, or a lot of other reasons.
If you're interested in the place you should go for the interview and see what kind of impression you get about your fitting in there. Also if you know what specialty you want to do, or have narrowed down to 1 or 2, really try and talk with residents there, not just the hand picked tour guide or the program director, and see whether they feel people have been matching well into that specialty, and are well trained in that area you are interested in.
Also, one thing you want to know first and foremost is are there people NOT matching at all into the specialty they wanted - at a place like UTSW the match rate should be almost 100%, even into a specialty like cards or GI. Even at a lot of less prestigious university programs, the match rate is near 100% - if it's not then that means the program isn't helping people match (i.e. no research opportunities for a lot of people or the program director and faculty aren't using their influence such as not writing strong LOR's, not putting in a good word for people during the fellowship match process). My general impression is that IM is getting more popular in the past couple of years among med students (not sure but so it seems...). Since primary care has a lot of problems, you can expect specialty match to stay competitive in the next few years, although with hospitalist becoming more popular I guess it could stay the same or get easier. Remember the hospital and department have their own interests but you have yours to protect.
I am sure you would be excellently clinically trained by UTSW - have never heard anyone say otherwise.
