May I have any advice on Horning Hybrid Aristotle PM65 speaker?

Give High Water Sound a call. He's the US importer for Horning, and a generally swell guy.

Call Jeff at High Water ASAP!

Thank you all! 

I think talking to him should be the first thing.
Still I’m outside of the country for business trip, so need more time.

Can you please tell me briefly, how this speaker can perform better than, (Classical music especially Piano) for example,

1) Bosendorfer VC7
2) Vienna Acoustic Beethoven 

Or from the different spectrum

3) Magnepan + 200+W combination?

Please share some wisdom.
(Please message me if this would be more appropriate)

I’ve spent quite a bit of time with the Aristoteles at High Water Sound and like them a lot. I think I have a handle on the Maggie sound (I owned once: big, enveloping, but lacking microdynamics IMO), Harbeth (owned once), Vienna and SF (the last I owned once; I find both smooth to the point of boring, but that’s just my opinion). 
But I think you need to back up a little. 
If I read your post correctly, you haven’t yet bought speakers or amplifiers. That’s good. Because the first priority is to find speakers that can work in your relatively small and square room, the latter being a particular challenge. I’d recommend shopping for a dealer who will listen to what you want to achieve and take your room into account. If they make grand promises and don’t ask questions about e.g. how flexible you are with placement of speakers and listening position (I’d suggest experimenting with an angled and asymmetric arrangement, to try to avoid exciting room nodes), then move on. Then buy an amplifier that is known to work well with those speakers — the dealer for the speakers you choose should be well placed to advise. 
Best, 
Ping

Hello Ping 

Thank you for the advice.
I sent you a message.

Please check, I really would like to hear your opinion.