This new 152 doublet is very interesting and a great new option for 6" refractors. I would expect it to be good value for a visual instrument.
I don't think it would quite match the Takahashi FS152. For that you will have to pay a bit extra for the APM LZOS doublet designed by Massimo Riccardi.
http://www.apm-telescopes.de/en/Tele...-2.5-ZTA1.html