Folks, if you've recently upgraded or renewed your annual club membership but it's still not active, please reach out to the BOD or a moderator. The PayPal system has a slight bug which it doesn't allow it to activate the account on it's own.
I've played with them. I'm actually in the process of ordering a couple for my road guys. They are expensive but for us it's a huge time savor especially when at a customers house. The only downside I've noticed is if your phosphates are less then .1 then it will just show 0.