I've been using PrimaLuna products (PL One, Three, and Five)for over three years. They are far from CRAP! and at least competitive in their price range. Well built, very flexible tone wise with tube selection, and hassle free with either the units themselves or their distributor Kevin Deal.
However, I have found that there is far more synergy between PL units than used seperately with other amps/pre-amps, at least with the Three and Five amp/pre-amp. As I read reviews this caveat seems to extend to some of their high end amps as well. I have not liked the Three with other amps (except a Mesa Baron) as the upper frequencies seem a bit rolled, nor the Five with other pre-amps, as the bass really thins out. But that is just my experience.
When I find myself with an extra $10K or so I'll start exploring some better stuff.
However, I have found that there is far more synergy between PL units than used seperately with other amps/pre-amps, at least with the Three and Five amp/pre-amp. As I read reviews this caveat seems to extend to some of their high end amps as well. I have not liked the Three with other amps (except a Mesa Baron) as the upper frequencies seem a bit rolled, nor the Five with other pre-amps, as the bass really thins out. But that is just my experience.
When I find myself with an extra $10K or so I'll start exploring some better stuff.