I got the Blur and it's a blast on the city streets. My impression (I have the 2007 Blur) is that the 2006 model did not measure the mileage too well, hence the forum's discovery/invention of BDU (Blur Distance Units - the number on the Blur's odometer). I think my Blur's BDU is pretty close to actual miles. Also, I like that my Blur has hazard lights and has audible clicks when I have a turn signal on - my more expensive and supposedly fancier Piaggio BV500 has neither of these features (and it should). Also, the combo of light weight and great brakes makes this scooter very safe, I think. I remember I had a couple of near-misses the first night I got it - it was Friday so distracted drivers were everywhere in my city. So I got good first-hand experiences with the braking capability of the Blur
As you suggested, the Blur looks like a sporty scoot, and gets away from the "retro" look, opting for (what to me is) a more sci-fi, anime futuro look - without going past the point of no return like a Morphous (although I kinda like the looks of that Star Trek wiener schnitzel of scooters, too). I'm about your height and weight and I've given rides to various people (mostly women) with the scoot around town, and they've all enjoyed it, I think especially when I have the top case installed, since it's like a back rest for the passengers. Being a gentleman I haven't asked the women I gave rides to about their weight

but after a while I almost forget they're behind me as I ride - by that I mean that I don't feel like the scoot's struggling in any way with the added weight. Of course I'm talking city streets, I'm not sure if you can or want to hit highway speeds with two.
I got the Blur to get a lighter, more flickable ride for the city streets compared to my BV500 which feels like a touring bike by comparison. I don't get out of the city with the Blur (I keep BV500 for that), but I just met a lady who rides her Buddy (I think comparable, but little less power/top speed than Blur) on the highways with enthusiasm, so it's a matter of choice (and road conditions in your part of the country?) than anything else.
I have to admit, I rather like having a small scoot and a big scoot. Riding one makes me appreciate the other the next time I ride it. I like the big one for power and speed, and I like the small one for the fun and nimbleness. I don't mean the Blur has no power or that the BV500 is not fun, but each showcases a different virtue of scooter riding for me.
Good luck finding a good scooter for yourself!