osvaldoFor that price, would you consider it a no-brainer?
In my opinion yes. I've seen them on sale for 600 USD and other higher prices. The build quality is perfect, these things were built almost as if they're tanks so the price is worth it.
osvaldoBased on your experience with them (I know you said it's not much but real experience is always more helpful), how was the comfort ?, the sound when listening to music, when playing games ?
Comfort is quite good the pads are comfortable as is which is something that isn't said much about a lot of cans, pretty sure they come with different pads as well to swap if you prefer different kinds. Due to the nature of the headband, clamping can be experienced if your head is pretty large but most of my friends say my head is quite big and I had no issues with that. Sound is insane. How I would like to explain their sound is that it is very neutral, nothing is going to really pop too hard over something else, but the sound is not boring, it is incredibly enjoyable. Some headphones can be SO NEUTRAL that they can seem incredibly boring but not in the case of these cans. This comes from the incredible precision and sound stage of these things that gaming should be no problem at all.
osvaldoWould a Fulla 2 be enough to take full advantage of those cans? and if not, would the Shiit Stack/ Mayflower ARC make a noticeable difference to the point that its worth to invest double the price ?
Fulla 2 is said to handle up to 550 Ohms so it definitely will handle the 250 Ohms.
osvaldoIs there anything more that you could say about this pair ?
If they're down from their $600~ normal, these are a sure buy. You will definitely NEED the Fulla 2 or any Dac/Amp combo you wish to go for (Schiit Stack being incredibly good) to help these things. One last thing is they're incredibly nice to look at.