depends on how the steps are configured. The steps on our A are no more severe than those we had on our TT, and better than ones on our old C. I have been in some A's however where even with 2 good knees the steps are problematic. Another thought - how wide is your entryway? My husband had knee replacements and he was on a walker for a couple of weeks each time. He could not walk through our RV door using the walker - doorway not wide enough. Couldn't go in sideways either. He had to 'hop' in on his good leg - not always easy. Might want to check to see how you might do if you could only use one leg. We didn't use the RV for about 2.5 months after each knee replacement. Once he felt stronger and gained confidence, we've never looked back. Two new knees, twice the fun! BTW, PT is not fun, but it is essential if you hope to get a quality result from the replacement surgery. No point in getting it done if you're not committed strongly to the physical therapy after the fact. A waste of your time and money if you don't follow through. Good luck and assume the best, commit to the effort, and it will happen. You are having the surgery to get rid of what could be a "Permanent Disablilty" - you're not creating one! My husband says he has a "New Life with New Knees". So many things we couldn't do before we can do now!