This was a great buy, have white walls outside and the picture is spot on. You can add bluetooth speakers but as I don't want to annoy my neighbours the sound is absolutely fine as is. The picture is great and I am streaming both netflix and prime. It has some faults but not enough for me to write a bad review.

Easy to use and picture quality much better than expected (even in relatively light conditions).

Is a nice projector. I have a good projector in my room, but i bought this one for my son room. Mine is a 1080 native, but comparing with this one, you cannot see a big difference. So, this one is a quality projector. Very good quality of the image, the colors are amazing, compared with mine one. Has a good sound. Doesn't matter where you are in the room, the sound is good. True, is not made for a very big room, but for a medium is perfect.
The best, is the autofocus. You only have to start it, and the autofocus is doing its job. In 1, 2 secs you have a good image, even you are changing the projection point.
I don't have it from a long time, so, hopefully with the time will be the same. If anything chenge, I'll update it.

I bought a Mars II a year ago and recently had a tech query. The customer support was excellent - quick, personal and resolved issue promptly

This is a great little projector. The picture is clear and bright and sound is decent. Very portable and the internal battery lasts a couple of hours. It runs Netflix, Prime, Plex, YouTube etc.
However, the remote control stops working when you launch an app. You need to switch to the smartphone app to select your movie etc in Netflix. That is a major pain as the smartphone app is awkward and unreliable.
So I ended up attaching a Firestick to the HDMI input which gives a much better experience. The downside is I lose portability as the firestick needs power and extra cables. Such a shame. Perhaps Anker can solve the remote control issue. If so then this would be 5* and well worth the cost.