"Everything seems to work and has nice clean carpet throughout"
So presumably you have not owned it too long yourself?
If you are looking to quickly flip it and make a profit, then I suggest you do an advanced search on ebay and look up completed listings for similar units.
If the carpet is clean, but original, I doubt any purchaser would want to keep it. Most folks appear to want laminate or hardwood. If you want do want to sell without issues then I would suggest you find out if all appliances are working as they should, that there are no leaks (there will most likely be leaks somewhere unless its renovated)
I have seen reasonable units sell for as little as 500 so unless you have something remarkable, or you are a great sales person, then I would not get your hopes up too high.
Don't know if this was the sort of answer you were looking for but its my 2 cents.