We're very pleased with the three Grizzly ebike's we just received and have trialed for a week now. Here are my impressions in no particular order:
1) the bikes were very well packaged. We only had one issue with a derailer guard that got bent in, but it was easily remedied. If I had any misgivings about the packaging, it was the amount of non-recyclable materials. I know some recyclers will take urethane foam which constitutes the bulk of the packaging, but our curbside pickup doesn't. I've salvaged as much of the rectangular pieces as possible that I'll be repurposing in future projects and packaging.
2) The package lacked any form of assembly instruction. As a retired mechanical engineer and an avid DIYer, this wasn't a particular obstacle, but for most, this could be a problem. In particular, basic instructions for mounting the front wheel would have been handy: unless I've over-thought it, the washers on the axle require a particular orientation and they were not so oriented in initial assembly. I'll have to admit that I've not viewed any online assembly instructions, but I find video instructions to be tedious and I don't always have internet access for PDF manuals.
3) In spite of the documentation/manual issue, the design, materials, and construction of the Grizzly are impressive. Welds appear high quality, coatings/paint is holiday and chip-free, and part machining (many of the bike's components) is flawless.
4) Once on the Grizzly, its performance is likewise impressive. Its sympathetic peddling assist is smooth and very welcome at startup from a full stop and on uphill inclines. My wife and granddaughter use the twist throttle for these cases rather than downshifting ... a habit I'll try to break when I've had a chance to compare battery range over a longer distance than our first 6-mile outing.
5) The motor selector switch is unmarked so without experimentation, it was not obvious which motor was powered. I plan to mark the switch when I'm confident I know which position selects which motor. BTW, I emailed customer support to help resolve this matter and was directed to an online video that only once mentioned the motor selector switch, but still was not specific about switch position.
6) I wish the bike was a bit lighter, but having said that, I don't think I'd sacrifice any of the Grizzly's features and robustness.
Overall, I'm impressed and quite satisfied with my purchases (we bought 3). Except for the minor points mentioned above, I would easily recommend the Grizzly to anyone looking for a robust and comfortable crossover (street/trail) ebike. Time will tell if my positive impression is warranted.