The Grex guns are definitely hard to beat, and do mesh oh so well with my festools. And if you want, it does fit nicely into a small systainer. I really favor the 650L model mainly because i do flooring. When i want to do an arch in a floor, the 650L does an amazing job. I glue up and bend the wood and just start firing away! This is the first pinner that has held up for my purpose and has shown unbelievable result. Up to 2" length in pins and the auto lockout feature is a must for a guy like me so I'm not shooting blanks. Grex is hard to beat.