You missed the group buy that they had going on by a couple weeks. I got the 35w and they are much better than stock. Keep in mind that you only have so much electrical power to work with, and 55w bulbs are going to be a big drain if you want to add any other accessories.
You're better off buying a quality set of projectors from www.theretrofitsource.com if you're going through the effort of a complete retrofit. You'll get MUCH better spread and cutoff also without that tacky/ugly angel eyes.