We swear by renting points, and some of the pros/cons mentioned above are (IMO) just personal preferences. It's true that you don't get daily housekeeping, but that's typical of any DVC stay. Not just one on rented points. It's not an issue for us.
While one poster may have had an owner that would not allow the purchase of a dining plan, I'd have to say that's probably rare as I've never heard of that before. It's no skin off the owner's nose to add the dining plan as long as the renter is paying for it prior to them adding it. The DVC owner would not be out anything. The only reason they may say no is because of the extra effort it would be for them to call in and add it, but every owner I've worked with has been more than willing to do that.
We are able to add the confirmation number to
MDE just like any other reservation, which gives us full control to make our own ADRs and FP+'s, just like any other reservation. We always add DME ourselves online. We always buy our tickets from
Undercover Tourist and have no problems linking them to MDE. And if a problem occurs with linking tickets, it's not because you're on rented points.
As mentioned, the other cons to some people would be that you're locked into the date you choose, often with no refunds or changes allowed. You also have to book pretty far in advance, especially at Poly. We've found some owners who, in their contract, state they will attempt to find another renter in the event you need to cancel. There's also a broker who offers a cancel for any reason insurance.
As long as you're aware of all the important factors, renting points makes staying deluxe much more affordable and is worth it, IMO.