I went to the local DHL place and picked up my 5x5x5 and 7x7x7 a few hours ago! I can't believe it, I finally own a V-Cube 5x5x5, 6x6x6, and 7x7x7! The 5x5x5 is incredible! Right out of the box, it is by far better than any 5x5x5 I've ever had (for the record, I have four Rubik's 5x5x5s including a limited edition one with adjustable centers, and two Eastsheen 5x5x5s). I can't wait to see how this thing will feel after some breaking in. And I literally can't believe how nice the 7x7x7 is. Again, right out of the box, everything turns so smoothly. It is better than anything I possibly could have expected. I'm especially amazed at how smoothly the outer layers turn... just incredible. If I had to rank the three puzzles in terms of how they move, it would be 1) 5x5x5, 2) 7x7x7, 3)6x6x6. My 6x6x6 is still getting better though, so that may change in a few weeks.