I bought this scooter to keep on our boat for running errands, small grocery runs and the like, since I don't have room for a bike.
I'm a big guy ( close to 300 lbs ) and was concerned about a smaller, lighter scooter not being able to handle the abuse of me riding it, particularly if I had cargo in a backpack. This scooter is rated for 220 lbs, but seems totally able to handle far more. Unlike a lot of scooters, this one folds at the base of the steering, rather than a latch in the middle of the frame. The frame is one welded piece of aluminum and the wheels are 10" air filled. There's no suspension, which means it doesn't bottom out, but also means the only shock absorption is the tires.
This scooter is big ( doesn't fit in the back of cars well ) because of the large deck and large diameter tires, but if you've got a good spot to park it, that's not an issue.
A lot of electric scooters are children's toys, this is not one of them. It's a serious piece of last mile transportation, well built and capable.
It's heavy ( a bit over 40 lbs ) because it's solidly built, has a massive battery pack for a scooter and the charger is built in. If you don't have to carry it far, that's not much of an issue either. You don't really feel the weight when moving and all that energy gives great range. The built in charger means there's no power brick to lose and all you need to carry with you is a cord if you want to charge it when not at home. The cord is a fairly standard appliance cord, so getting a replacement or a second one would be easy and inexpensive.
There's an LED tail light ( it flashes when you hit the brakes ) and a nice, bright LED headlight with fairly good coverage, though I wish it was aimed just a bit higher for a longer throw. It's easy to overdrive it if you're moving fast. The brakes are a combination of a lever activated drum brake on the front wheel and regenerative braking on the rear wheel. I've got my lever adjusted to where I can run pull it only a little to trigger only the rear brake ( nice for long downhill ) or pull it more to grab the front if I really want to stop.
The LED dash shows battery status in 10% increments ( 5 LED's, and the largest value one flashes to show it's half used ) plus bluetooth status, power mode ( eco, standard and sport ) MPH and if the headlight is on.
There's also a phone app that allows you to update the scooter, make a few setting changes ( a sort of "cruise control" and regen level ) and lock/unlock the rear wheel for a little security when unattended. The Android app at least is a little unpolished with some translation issues. I sometimes see notifications in what I assume is Chinese and have no idea what it's trying to tell me and have seen Chinese instead of English in a few other spots as well.
Range is great. As noted, I'm a big guy and I often carry a backpack with groceries and the scooter has far more range than I've ever needed. Product specs are about 40 miles ( with a light rider and a slow speed ) and I mostly ride on sport mode and full throttle a lot to accelerate. Still, I'll go 12 miles and it will tell me the battery is a 50%. It's got all the range that anyone commuting on a kick scooter could need and then some.
Power is good. Steep hills slow it down some, but so far it's climbed everything I've used it on. Obviously, a lighter person would climb better.
Speed is adequate. There are two versions of the max, the G30 ( 18.9 MPH ) and the G30P ( 15.5 MPH ). I somehow ended up with the P version, but frankly, 15.5 MPH is fast enough for me. 10" still isn't a terribly large tire and you've really got to watch for road hazards.
So, in summary, most of it's downsides are consequences of it's upsides. Yes, it's big, heavy and expensive. But that size and weight give it good power, good speed, good range, big tires and a great build quality.
Despite buying it from Segway through Amazon, the purchasing experience was less than perfect. My scooter was the slower model, despite the fact that it was advertised as the faster one. It arrived damaged ( some dings and scratches ) and appeared that it might have been opened before, since it was missing the screws to fasten the handlebars on and the allen wrench to do this. I complained to Segway and got a small discount, but they never sent the screws and tools as they had promised and I had to source my own screws to use the scooter.