They did a fine job with Springer, and I'm looking forward to Sandstorm (who is a retooled mold). I've heard mixed things about Blitzwing, because there's a design flaw that prevents his shoulder tabs from connecting tightly. It's not too difficult to fix if one has time to do it, but I'm not sure I'm that skilled.
yeah, i'm not very skilled at doing any kind of mods with my toys. don't think i'll get Blitzwing. i will end up getting Sandstorm though. and probably the new stealth bomber Megatron when it comes out.