I'm just back from surgery w/ Dr. Illan on 4/8, and I had no trouble managing on my own. The hospital staff was great! The valets are very responsive, and they are with you at the hospital and then later at the hotel. You don't really feel alone after you leave the hospital- there is someone there if you need it to walk around with you or take you and other patients out to see the sights.
As and FYI, these are some of the things valets did for me the 5 days I was in Mexico:
offered to contact my family when I was out of surgery
checked on/ accompanied me to pre-op medical tests
translated (as needed)
coordinated with drivers
kept me company as I walked around the hospital post-op
carried my bags/suitcases
took me shopping
took me to THE BEACH
took photos for me
took me out to restaurants that also served special meals for patients
took me to a GROCERY store
found me a USB drive for my surgery video
I'd do it the same way again for sure. :-)