Lentech Street 4R70W ?'s

Wasup Guys? Lately my 94 SC hasnt been shifting the best and i wanted to upgrade it soon. I was wondering if anyone has any info they could help me out with on the Lentech Street 4R70W Transmission they are selling? Does anyone know prices also? Please any help would be appriciated. Thanks in advance.

Jayson

lentechs' homepage is a good source of information
LINK

my friend has a strip terminator he loves it and lentech has great customer service as well