From my experiences during my rotation there:
The University of Colorado has been a strong program, and it is getting even better from what I can tell.
Faculty: They have a new program director that has a good reputation for managing the program and being very kind to the residents. The department is growing steadily with some recent new docs from great programs (Cleveland clinic, etc.). They have some strong leaders in their fields including Dr. Oliver in Retina/Ocular Oncology/Pediatric Retina, Dr. Palestine in Uveitis, Dr. Kahook in glaucoma, and Dr. Bennett and Subramanian in Neuro-ophtho. Clinical and basic science research projects are easily available to residents. There are weekly didactics that faculty and higher level residents teach, and they were very informative.
Culture: Non-malignant and resident focused. Residents do not have to compete with other residents or fellows for cases. Many faculty are comfortable being called by their first name which is a testament to the more relaxed culture there.
Facilities: The hospitals covered by the program include a county hospital, children's hospital, university eye center, and a new VA that is opening close to the main campus. This seems to give the residents a well-rounded experience. The county clinic is pretty far from the main campus, but I heard that there is a separate resident on call to cover it so travel while on call doesn't seem bad. All of the buildings and equipment are new and updated (minus the county clinic which still has good equipment). The wet lab at their facility is larger and more equipped than any program that I have seen so far.
Numbers: I don't remember the surgical case numbers exactly, but cataracts were in the 220's. I remember all of the other case numbers being well above the national average.
Fellowship: I have heard they match well, and many residents stay at the university of colorado for fellowship. They just matched someone at Alabama for retina (one of the top programs) and another person at Tufts for glaucoma. I'm sure that they will give more info on this at their interview days.
Denver: Really awesome city to live in. You can do pretty much anything you want in Denver or by driving out to the mountains (about an hour drive west from campus will have you in a mountain town with ski slopes nearby).
Cons: The PGY-2 residents keep busy with their call schedule (I can't remember the exact schedule). I have heard that they are one of the busier programs around but the work seems to be front loaded to the PGY-2 year.
I plan to rank this program highly so I'm a bit biased. If you need any other info, I'll try to help.