I think I'm at about 50/50 relative to liking the overall design of the pieces he makes on the show. Many of them are just not my taste. But I am 100% enthusiastic about every episode (and I have seen them all at least twice). Having seen the work in his portfolio on the DJ Marks web site I'd guess the stuff on the show is actually dumbed down for the audience! He's clearly an accomplished artist in the field.
After watching the entire series and using so many techniques daily that I learned from his show I desperately wish they would release the whole thing on DVD. His coverage of design theory and practice, the use of templates and ability to accomplish joinery and shaping with a variety of methods sets Woodworks apart from any series I've seen. Its a fairly complete intermediate level education in wood working. That one show opened my eyes to a world of possibilities and periodically reviewing it never ceases to renew my motivation and invigorate my personal creativity.
Next time you see him can you encourage him to teach a class in the North Eastern US area?