Searching for an amp to pair with Rockport Atria II

I recently upgraded from a pair of Magico S1MKII to Rockport Atria II. I am very pleased with the move the Atria II is a more complete and “musical” listening experience. I am now looking to complete my system by upgrading from my Hegel H360 to a new amp. I have a dCS Bartok and two JL F100v2 subs in the system as well. 

I currently am auditioning the Octave HP300 and Octave RE320 with the black box. I can say that the sound stage is much more open with the Octave gear compared to the Hegel. I did try the RE320 feed directly from the Bartok and it sounded great as well. the Hp300 just opened up the stage a bit more and provided more range to the dynamics. 

I am looking for a bit of information on the Octave gear as far as reliability. There is not much out there outside of a few english language reviews. It seems like most of the reviews are out of Asia or Europe. It doesn’t seem like Octave has much market penetration here in the US.

I am open to other suggestions as well. I am enjoying the Octave so far and it seems to have more than enough power for the Rockports. I have seen a few videos with the Octave v80se driving Magico A1 and A3 so I am pretty sure it can provide the power if needed. 

Thank you for any and all advice.