If you like MC5 and think highly of it.. then MC6 is a huge improvement.
Both MC6 and Falkens are UHPs while GY excellence isnt.

You wont find much reviews on MC6 internationally cause its made for asian markets hence not avail outside. but plenty of reviews by local press at launch time.

Ive used Fk510 and im using MC6 at present.. price wise its far too competitive over PS4. Performance wise, no complaints.

Price to performance MC6 is pretty good. Not much of a diff compared to FK. Unless u side sweep corners and pedal to metal all the way everytime, the differences is probably minute. I do find mc6 softer though.

The other affordable uhp is Gt radial or giti hpy. They have in run flats as well.. Cheap and pretty decent for me. Also on occasional runs up UY.