Are you using the community technical previews?

One of the new things that we're doing during this product cycle is releasing a series of Community Technical Previews.  For those of you who haven't used a Community Tech Preview, they're pre-beta releases of the product.  Normally when we release a beta, we create a copy of the tree, fix a bunch of bugs and then release the beta.  The whole thing can take a couple of months until you have the bits in your hands.  For a CTP, we fix only a few bugs and then give you the bits.  This means that you're using the real product and can give us feedback much more in real-time, but it also means that you see any of the bugs that introduced during the product cycle. 

I'm curious how many of you have installed the first CTP, used it, and what you think.  Let me know.