We generally have no problem with the resorts. They are all great vacation resorts. We've stayed at all except for BWV and SSR.
Not so many regrets, but just some downsides to keep in mind about program in general. The exchange programs are often hyped during the sales pitch (i.e., trading points for a cruise, or Disney resort, or other member getaway), but the points required for these trades have literally exploded over the past three years. This has deminished overall program variety and value.
Also, don't expect anything "special" from Disney. To date, Disney Corp. hasn't gone to far out of their way to offer "club members" anything spectacular in the way of pass discounts and other perks. They tend to be run of the mill discounts repackaged and advertised for the
DVC member. Also, special member events tend to be priced $$$ over and above the going Disney rate for comparable ammenities and services. IMO, Disney views DVCers as the cash cow that requires no prodding to get into the stall. This has caused some long time DVCers to look for other entertainment options while staying at their "Orlando timeshare".
Dues have gone up about 5% for each of the past three years. The inflation rate has been very low during this timeframe so, IMO the dues increases have been a little high. I hope that trend does not continue.
Keep in mind that you are only prepaying for your accomodations, and there are numerous other costs with vacationing at WDW.
The offsite DVC resorts are the most affordable from a budget DVC vacation standpoint. Also, HH and Vero have more onsite resort activities and function much better as stand alone vacation destinations. We love the HH resort.
If you don't care which resort you stay at, I'd buy the cheapest one you can find by resale.
Good luck with your decision...Johnnie