Way better than they should be
At this size, at this price, these little monitors are above any reasonable expectation in performance.
I have one (very minor) gripe, and one (very minor) heads-up for other purchasers.
The gripe (and the reason I'm not giving five stars) is that below about 50Hz, they're basically silent. If you need that, get a sub.
The heads-up is that yes, they have those very convenient threaded holes in the base to accommodate mic stands, but they're euro-standard mic stand holes, so if you get (as I did) american standard mic stands, you'll need an adapter. Not a big deal, and quite cheap from Sweetwater, but just one added item.
Other than that, great little devices! I've recommended them elsewhere, and I'll recommend them here.