I have ran just about all of the converters out there coan ptc tci art carr b&m and BTE and they all have worked very well for me ran a PTC for 4 years broke it last year ran a art carr for 4 years and i have a soft hit bte in the car now i do like the soft hit the car is very consistent .
I don't know who is the best if there is such a thing you can buy them from 300.00 to 3000 grand lord knows i have spent enough on them and like i said they all seem to work good.
I guess what I'm saying is if you are happy with it then that's the one.
I have found out for me that maintenance is the key to it all heat will kill one i found out that the hard way.