There are major differences between getting a room through CRO, and renting a reservation from a DVC member.
It's far cheaper to rent from a member; you'll save a lot of money. That said, however, there are tradeoffs:
1. Renting is a private transaction between two individuals. Disney will NOT get involved in any way. You should get a copy of the confirmation from the member, but you will not be able to speak with DVC to confirm the reservation. About a week before your arrival, your reservation will download to the resort, and you can call them to confirm.
2. The member 'owns' the reservation until you check in. You won't be able to make any changes yourself; the member will have to add the dining plan, add DME, etc.
3. Because of the penalties the member may incur if the reservation is cancelled, many members who rent have a no-cancel policy. You may not get your money back if you have to cancel, because the member may lose their points or be unable to re-rent before they expire.
4. If you like to make a lot of changes to your ressies (switch dates, resorts, room size, etc.), renting from a member is not a good idea. DVC resorts get booked up far in advance (sometimes, 11 months out), and the member may not be able to get you into another resort, etc.
Go to the DVC Rent/Trade board, and read ALL of the FAQs/stickies there. There's lots more information than I provided above, and you need to be very familiar with the process before deciding to rent.
Oh - and you do not get daily housekeeping when staying on points. I believe you get trash pickup and new towels on the fourth day, and a full cleaning on the 7th, but I could be wrong on the days. You can purchase extra towels, and pay for additional days trash/towel service, or even full cleanings.