I have the 9mm version, in black. They are fun guns, but there are some things you should be aware of.
In no particular order:
1. The trigger is horrible. Made of plastic, it is very wide, has a very heavy pull, and breaks about like a wet sponge. As a plinker or home defense weapon, this is not a real problem.
2. Disassembly for cleaning is difficult, at best. The manual does a poor job of explaining it in an understandable way. YouTube is your friend here. Fortunately, it doesn't need to be cleaned after every range session. Most people just clean the bore, wipe the outside down, and call it good until it starts malfunctioning.
3. Build quality is not great. It's mostly plastic and sheet metal. The parts that are cast are of cheap metal and pretty roughly machined. This is not a gun you will put 100s of thousands of rounds through.
4. The firing pin does double-duty as the ejector. If you pull the bolt all the way back on one, you will see the firing pin sticking out of the bolt. Bent firing pins are not unheard of. I'm not sure if it has ever happened, but I could see a bent firing pin getting stuck, resulting in the rifle going full auto, without even pulling the trigger.
5. With my cheek against that rough textured plastic stock, the vibration of firing my 9mm would make my cheek sting. I fixed that by wrapping paracord around the cheek rest (the black area on the picture you posted).
I'm not badmouthing them. Just understand there is a reason they are so inexpensive.
On the plus side, they do have a lifetime warranty. They don't care if you bought it used... it's covered.