I must confess that I wasn't very impressed with first warm fermented beers from Pivovar Permon, they weren't very good. But they've improved quite a bit since then. They are not going to knock anyone's socks off, they do their job quite well and at a more than reasonable price to boot, when compared to other similar beers made in the Czech Republic. This makes them ideal to use them as a benchmark, and that's how I've come up with the "Permon Standard", a bar to measure the české ejly in terms of price/quality.
To give you an example, Benediktin IPA, from Břevnovský Pivovar or Podlesní IPA, from Pivovar Podlesí, could be said to be AP (Above Permon): they are pretty much in the same price range, but I like them better. On the other hand, Rebel IPA from Havličkův Brod is BP (Below Permon), the pint I had the other day was at around the same price but didn't taste very good. The IPA and BIPA from Two Tales are also BP, but because of the price - I find them every bit as good as the ones from Sokolov, but they are much more expensive. I could go on with others, but I think you get the picture.
So there you have it, nothing better than a good benchmark to evaluate things fairly.