I wouldn't know if the Pila is worth it. I keep hearing its a better charger, but my charger is a TR-001 and my backup charger is also a TR-001. I've been using mine for almost a year with the only flaw being that it no longer does two
batteries at once which is fine, because I have 8
batteries in rotation and never need to charge more than one at a time. I figure once I have tossed the one I'm using and am using my backup, I might look into a better charger. Right now my
batteries come off the charger at 4.19-4.22 regardless of how long I leave them there.