I miss it for several reasons, which I'll explain in a second. As far as the name change goes, if you read my review of ECW One Night Stand 2006 on the Old School PPV Forum (cheap plug), I state that ECW really disintegrated from the product that was introduced to wrestling fans around 2006. In all honesty, after Heyman left, ECW should have morphed into a different name since it didn't live up to the namesake's style of wrestling or presentation.
That being said, ECW's positives outshined its negatives. For one, it developed new stars. Case in point: CM Punk. Here's a guy who probably would have been squashed like a bug debuting on Raw or Smackdown. Yet, he was given the time to gain exposure on ECW and grab an audience through that. He already had the fans who loved Punk's work in ROH and other companies, but this allowed him the time to get the audience truly on his side. Jack Swagger is a similar story. Someone that needed the exposure on ECW before getting promoted to a top-tier brand. Sheamus... do I really need to explain here? No matter how bush league ECW seemed, it helped new talent get prepared for the other two brands.
Another positive of this show was that it resuscitated many careers. The Miz is a GREAT GREAT GREAT example of this. When Miz was drafted to ECW in 2007, I expected him to be on the chopping block. However, they allowed his character to grow and mature on ECW, and then, the tag team of the late 00's in WWE is formed. Johnny Nitro is another example. I'm sorry, newer fans who may not remember this guy. He was a member of MNM and also served a stint as Eric Bischoff's lackey for a couple months. His career was flushing down the toilet, but ECW was the place where John Morrison was born. He became ECW Champion for a few months, and when he came back from suspension, he and The Miz formed a tag team that won tag team gold on the other two brands while being based in ECW. Matt Hardy, Finlay, Goldust, William Regal, Big Show, Mark Henry... all examples of guys whose careers were helped by being on ECW... even if that only meant they kept their jobs.
Bubba Ray Dudley (Brother Ray in TNA or just douchebag, either name will work) stated in The Rise and Fall of ECW that the original "ECW was the breeding ground for WWE." With all of its changes and the fact that it shouldn't have maintained the ECW name, the ECW show did do that purpose. And while I enjoy watching some of the young talent work in NXT, I do admit to missing the "abomination" that was ECW. I hate reality TV shows anyway, and I can't stand scripted wrestling shows trying to be revolutionary.
(And just a rant: Whoever thought it created heat to have Cody Rhodes send Matt Striker off the stage needs to be fired. Seriously, Cody isn't going to get heat for doing something the audience wanted to do themselves. And the younger fans won't remember next week if it isn't on Raw or Smackdown. In the words of this generation: epic fail.)