We have no complaints about it, other than the price. (It's still $200-$300 cheaper than the 27" 5K display that hasn't shipped yet; but it's about $100-$200 more than an equivalent Dell display that doesn't have USB-C.) We also wish it charged at > 57W, but this monitor predates the release of the new MBPs.
I use a 60W MB charger (with magsafe adapter) with my MBP 15" at home - it has had no problems for years despite the 15" normally requiring 85W.
I remember someone saying that the nominal usage wattage of a newer MBP 15" is around 15W, perhaps double if CPU taxed.
I've been thinking two of the 4K LG monitors Apple offers next to each other in portrait orientation would be nice. However, the lower UHD resolution at 27" rather than 21" probably makes a lot more sense for me if I want to be able to sit further away from the display.
If my eyes are 3-4ft away, 160ppi probably doesn't even look like it has less definition than 220ppi.