Some have had good experiences, some not as good. In the end, it will come down to the lease payment (how good the price you bought the car for) and any money down required, as most people shopping to take over a lease are looking for a bargain. It gets more complicated with MSD's which must be paid upfront from the buyer, to be returned at lease termination. I think most lease takeover candidates do not want to put any money in.
You will need to be prepared to be hammered for low ball offers since many buyers know that many who look for a lease out need to get out. Incentives seem to be a good way to get attention. Good luck - there is always a buyer out here somewhere, just need to make it so that your deal is much better than just doing a new lease. Good luck.
Here is another post by someone who has had success:
2011 E93 M3 Convertible JB/FR | 2002 E46 M3 Convertible | 2002 E53 X5 3.0 | 2000 E39 540i | 1998 E36 M3 | 1988 E28 M5 | 1987 E28 528i