I got 57.7 mpg in mixed (mostly outlying suburbs) riding. I'm 180 lbs.
I'm a little shocked that it does as well as my Burgman 400 did, while also making more power and being the older design. (I had the newer Burgman)
The only disappointment so far was when the radiator fan came on at a stoplight, and blew the heat right on me. That was one reason I got away from motorcycles, and it is sloppy scooter design, in my opinion.
I was concerned that the front brake may not be adequate, after the Burgman's front double discs, but it seems to stop pretty quickly.
Under seat storage is not quite as much as the Burgman's, esp. where the passenger part dips down into it.
Throttle return spring is too strong; makes the wrist tired more quickly than the Burgman's did. I bet they did that for long-term reliability in the absence of lubrication.
Not as much rearward space for the driver's feet, but that is a nitpick.
The fairing pocket door latches aren't as well designed; they feel very cheap compared to the Burgman's.
I prefer the direct seat lock on the Silver Wing to the cable arrangement on the Burgman. It has a better action and should be more reliable in the long run. One less cable to worry about.
It took some time to get used to twice as many power strokes on the Silver Wing's twin. When the Burgman 400 was at 70, it ran out of steam FAST. The Silver Wing's 582 cc unit seems to not be working too hard, and like it has a lot of poke left. However, the Burgman seemed to make more torque in the 20-50 mph range. The 'Wing's clutch action is loads better; the Burger had way too much slippage.
The lines of the bike are nice too; a little nicer than the Burgman's, but not quite as nice as a Majesty's, IMO. I like the Silver Wing's nose design the best, but the side and tail of the Majesty is just pure beauty.
My wife, who threatened me with divorce over this purchase has warmed up a bit to the bike. She likes that I'm willing to pick up odds and ends for her. She also asked me to order her a helmet, in case the mood strikes her to go for a ride again. She doesn't like to admit it, but she misses riding too, new baby or not. (it feels irresponsible to her)
Maybe she will miss the power next, and suggest an ST1300? :-D as a second bike though; I would not trade this for it. It has a different set of strengths.