As an inexperienced user of such monitors, pretty much my only complaint is the glossy finish on the front that collects too much dust.
It sounds great and is very feature rich for how cheap it is.
However, if you don't have a lot of space you should know that they are much bigger than you'd expect if you have never bought monitors before, and I'm assuming a lot of potential buyers have not.
I use my pair for listening to and mixing music primarily. I have them connected to a scarlett 2i2. At first they sounded extremely bassy, but after a quick look through the manual, I realised all I had to do to fix that was flip a switch on the back, so do read the manual if you don't know what you're doing.
They're very easy to set up, but you will need to have the equipment to connect them to your device, so look up what connections you need and get the proper cables, or you might end up with a big bulky paperweight.
For first time buyers, do keep in mind that you need to buy them individually, meaning if you order one from here, you only get one speaker.
Finally, one thing that annoys me slightly from time to time is the low hum they make when on max volume. I always have them on max volume and control it through my interface, but you can probably just use them differently and not have that problem.