It really depends on what you are looking for & how & where you like to drive. They are supposed to be excellent turbos and are very popular for good spool (not as good as stock of course though) and a good bump in power (not as good as the top end on a bigger slower spooling turbo though). You should look at deadbolt's site, I here they are really good to work with. I'd give them a call at this point personally. Also call your dealer back and ask them what screens - they should tell you since you paid for the diagnosis. I'd like to know now.
Turbo FAQ: Read if you are thinking of upgrading! - NASIOC
Information about all VF Turbos