I think they are the best quality (new) tubes out there. I use them in everything. I have been very happy with the tones that I have gotten with them.
The only tube better IMO is the NOS Mullard tubes... but they are very rare and expensive now days.
The JJs that I use are V3: 12AX7, V4: 12ax7, V5 (verb): 12AT7; then of course the power tubes. My V1, and V2 tubes are NOS RCA 5751's