Didn't look at web site but I bought the Home Depot $62 crimp tool and it works great. Buy the pex pipe cutting tool also. Make sure sure you have good quality pex stainless clamps. There are cheap clamps on the market. (Some hardware stores sell cheap clamps that are very narrow) I got my clamps at Home Depot. Use brass fittings not plastic. I re-plumbed my MH washer and also some stuff in my S&B. No leaks. Make sure clamp is back from end of tubing about 1/16". The tool comes with a go/no go gauge so the tool can be adusted properly. If it leaks you are doing something wrong, not the tool.
Went back and checked that tool. Buy the better quality tool.