Pros: Can drive a wide range of headphones low and high impedance cans and even IEMS (lack of noise) Excellent build quality Looks Tube Rolling
Cons: Price but you get what you pay for. Rectifier upgrade is a must to get absolute best performance which adds to the initial cost.
The only thing i would have liked to have seen is the inclusion or the option of having preamp outputs. For the price paid however I wasnt too happy with the stock rectifier I found it added too much darkness to the sound, replacing it with the Sophia princess (i highly recommend) however mitigated this problem and seemed to make the amp feel more 'open' and much more enjoyable listen.
I highly recommend this amp for anyone looking for a versatile tube driven amp looking to power a wide variety of headphones.