Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Porta-Nailer 402P is Great!

I installed 650 sq.ft. of bamboo flooring with the Porta-Nailer 402P and it didn't jam once! Most nails set properly with two hits of the hefty Porta-Nailer hammer. There are two issues:1. The bamboo/metric face-plate isn't standard on any of the Porta-Nailer kits, so you have to purchase it separately ($40-45).2. The face-nailer shoe is useless on solid vertical bamboo - it splits the flooring no matter which direction you position the nail. However, it was easy to pre-drill holes for the nails and nail them manually close to walls (where the nailer doesn't fit), setting them with the Porta-Nailer nailset (also an extra purchase @ $15).Overall, a great, well-designed tool; comfortable and easy to use.