So like many here, I had the 3rd generation iPad and I have to be honest, I was very satisfied and content with it. I didn't really have any heat or screen issues and it worked great. However after seeing peoples reviews here, I decided to bite the bullet and so I went to Best Buy and bought the new one. (32GB black) Holy crap the new A6X processor is super fast! Like the iPhone 5 that I also have, everything is so fluid and quick. Apps load almost instantly and theres no "lag". The Facetime HD camera is awesome! Now all my Apple devices have a Facetime HD cam so i'm glad I upgraded. However one of the biggest upgrades I noticed was something that wasn't even advertised. The speakers! Holy **** they sound just like my macbooks! They are loud and pump out clear full sound! Very impressed!! I haven't really noticed too much of a difference in wifi performance but then again, I never had any problems. It runs fast just like it should. Overall, I highly recommend you guys upgrade. I sold my 64 LTE on Craigslist and made enough to buy the 32GB wifi only. (I never even used the cellular and i figure with icloud now, 32 is enough) You won't regret this guys and thanks to everyone who has already posted reviews!