I am a shorty and although I loved my SH300 there wasn't any room to stretch my legs out, so if you are over 6ft it may be too cramped for you.

I went back to a maxi scooters (TMAX, Kawaski J300) and currently a Forza 125 which definitely gets to 60 very quickly (in my book) and has a top speed just over 70mph. 100+mpg is a bonus. Corners really well and I love it.

There is more stretch-out-ability on it but it might not be enough for you.

Had a silver pcx 2011 , great scooter apart from the seat hump . Also found the seat a bit slippy , when you braked you slid forward. But saying that I had it for 4 year and never let me down .Very nippy.
Got my forza 125 in blue & white in May 2016. Bit of a different ride all together. Smooth acceleration, quiet a bit heavier to lean over . The seat is great no slipping about. My only niggle I have with it is the screen , It does rattle a bit , had to put a bit foam between the plastic.
Overall if I had the choice again think I would have just bought the 2017 PCX and saved 2k.
Forza is great but don't think it justifys the extra money , apart from being bigger. Sorry.

SH300 or 125...big wheels,,,, corners more like a motorbike and the 300 leaves some sports bikers for dead from the lights....especially if they are half asleep and potholes don't knock the fillings out yer teeth and top speed of the 300 will surprise you. Take a test ride of a new one. Keyless ignition, ABS and traction control.