I have been using WWD myself for a while and have to say that I am very satisfied. These are the things I like most:

- WWD handles all customer service
- Turnkey website with little or no programming requirements
- Good wholesale prices with no revenue share
- Broad range of products to resell
- Ongoing development of new tools and services (i.e. PPC Park Pages)

Some of the things I think could need some improvement:

- Reports in the Control Center
- Ability to track customer funnel from home page to sale
- Not all affiliate revenue is yet shared with resellers (i.e. referrals to Kanoodle)

Overall, this is a good way to get into the reseller business without to much effort to set up the site. However, if you are just looking at buying domains at discounted prices, you may be better of with BlueRazor, another one of GoDaddy's sistem companies, as they charge a much lower annual fee.