O's grandparents gave her this set of Rainbow Blocks for Christmas, and we were very excited about all of the creative building opportunities they would provide. The set consist of 24 blocks- 8 sand blocks, 8 bead blocks, and 8 rainbow blocks.
When I opened the box, I immediately noticed that 2 of the rainbow blocks were cracked in the middle. Soon after this discovery, O was playing with the blocks when one of them dropped...it broke. I was VERY surprised since it didn't drop far. A couple of days later, another block broke (the wooden frame broke off of the plastic middle. I think it can easily be fixed with a little wood glue.) We told O not to include these blocks when she builds her tall towers as they will surely break when she knocks the towers over.
I emailed the company about the flaws in the blocks requesting a full refund or replacement blocks. I was surprised when they emailed me back within 2 hours promising a full refund. In the email the customer service representative stated that my blocks must have come from a faulty batch, and the blocks were usually more durable and without flaws. They sent the refund immediately after I emailed my address.
We've had a great time playing with these blocks, and they work well with O's traditional set of unit blocks. However, I doubt I would buy them again knowing what I know about their quality and durability. I guess I shouldn't complain since they sent us a full refund. They definitely have great customer service!