These are basically like Lego but the pieces are smaller. They had all the Straw hat crew members and Ace. I bought the Zoro version for $8 at the Richmond Night Market in BC, Canada.
The instructions were very clear so it was easy to follow along. It also came with spare blocks in case you lose some blocks.
The final look:
The amount of time to build depends on your experience level. This was fun to make, and it’s a great gift idea for the anime or block building fan. They had other anime characters too. I recommend this!