I used to have one. It's not a bad grinder. especially at the sale price. Though mine did not last through the warranty period. It began to get very noisy, then let out a loud "screeching" sound. And basically the shaft that drives the center burr had given up the ghost. Two things though to be entirely fair.
One, I think I may have over used it. At the time I used to "batch" grind. IOW I'd do enough coffee to last 3 days or so. Basically close to a half lb of coffee at one time. So I think I may have done it in as opposed to simply filling the hopper and grinding my daily dose of about 70 grams.
Second, OXO to their credit sent me a new grinder under warranty. Though by this time I was able to order a similar unit from Amazon getting it within a day. Since when the OXO gave it up, I had no grinder=no coffee=unhappy me
The cheap Chinese grinders I'd bought served pretty well so I sold the OXO brand new unopened for more than I'd paid for 2 of the Chinese ones (to be fair unless you spend copious sums of $$$$ even many of the top name ones i.e. Breville, KitchenAid, Baratza, and many more are all made in China). I only call them "Chinese grinders" as they have strange names like Shidip, Shardor, etc. It's usually not until you get to $600 or more to find ones not made there.
Anyway I currently have a KitchenAid Conical burr grinder and a Breville Smart Grinder Pro. Both of which I'm finding to be extremely good machines. I keep one set up for my daily batch brews and one set up for espresso grinding.
I think had I not beat the OXO into failure it would likely still be on my counter