Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

My daughter loves her blocks. She will get them all out and look at each one until she finds her favorite. She likes to shake them and see what each one does. These are cute little blocks that have hours of imaginative playtime inside. They also have blunt corners, so no sharp edges like wood blocks for the safety of smaller children. The fact that they have the letters of the alphabet and a corresponding object inside makes them a great learning tool even for older tots. We have really enjoyed these and recommend them to our friends.
Positive

I've owned this CD for a few years, yet thought something was slightly off, so I compared "Keep A Knockin" to another copy I have.Results:Original is 168 beats per minutes, while this version is 172 beats per minute.Original's time is 2 min. 23 seconds; this version is 2:16 min.
Negative

The finest pop songwriters get a piece of their due with this three disc set. There were no finer writers than HDH during the second half of the twentieth century and this set is testimony to that. Sadly, most of these songs are available elsewhere and avid Motown fans will find this redundant. Great mono versions of a good chunk of their biggest hits but a second volume is called for with more of the post Motown output and a deeper look into the vaults for demos of some of the literally hundreds of top shelf songs these guys wrote. How did they do it? Don't have a clue but I sure do love these songs...

Positive