Oh, there's no question that Wyndham owners, for the most part, enjoy their ownership. For example, we recently stayed at Bonnet Creek in a one-bedroom deluxe, for $40.32 per night. And the resort is beautiful!
I personally think Wyndham is a great timeshare system, and the locations of their resorts fit will with our family. We can use our points at about 70 Wyndham resorts directly, booking online, and with little difficulty getting a reservation unless we're trying to go during a super-prime period (Bike Week at Daytona, for example). In addition, a full RCI membership is included which gives us access to 6,500+ RCI resorts worldwide, as well as Extra Vacations and Last Calls (greatly discounted cash offerings).
The key, however, is how you purchase a timeshare -- if indeed you decide to buy one. You can buy from the sales weasels for tens of thousands of dollars, or you can buy in the resale market using reputable licensed real estate brokers, and pay pennies. You can literally buy numerous Wyndham contracts on eBay for $1 -- it's done every day.
It's not the resort system the owners use that's the problem, it's the sales tactice used to sell something for $30,000 that you can buy every single day for $1.