The Tester Approves thread (see first post)

Tester likes Pro stuff for finishing kit

This is true. I have big hands and I particularly like the Vibe bars with the fat tops. The rest of the kit may or may not be any better value than other Taiwanese offerings, but having Shimano do the QA takes all the risk out of it.

For example dedas 35mm stems/handlebars, are they a good idea?

This is moot. There is one school of thought that says 26mm road bars can provide more comfort and lower drag, and a small weight penalty is a price worth paying.