WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
Building, troubleshooting and testing of these amplifiers should only be
performed by someone who is thoroughly familiar with
the safety precautions around high voltages.
I have ordered valves from them before. And I think the main reason not a lot of people have not done business with them is that Western Union transfers are just about the only way of paying them.
Last time I checked, the shipping costs were almost as much as the transformers. A shame really.
Russians that I have spoken to have said it's a good company, but not in the top league.