After loads of researching and doing the usual thing of watching loads of reviews on YouTube and reading loads of reviews online, I finally plumped for this model. And I've not been disappointed at all with my choice!
I predominantly use the projector at night, so the issue others mention of "not bright enough for daytime viewing" isn't really an issue for me, as I would imagine, it won't be for most of the people looking to buy one of these.
The picture quality is absolutely stunning and the sound from the unit itself is also pretty decent, considering its small size. Although, I tend to link mine to a JBL Bluetooth speaker, which works a treat and produces a much better sound and adds atmosphere to a movie.
The autofocus works a treat, as does the auto keystone feature. I've never had to manually adjust it myself so far.
The only thing worthy of mention as a very slight negative is the noise from the fan. It isn't silent, but then again, it isn't ridiculously loud either, though I can imagine some may find it a distraction if you're expecting complete silence, like from a telly!
Overall, if you get it when it's on offer (which is fairly regularly) it's an absolute bargain and an absolute joy to use to boot....

Anker nebula solar portable
This is a great looking projector with a nice weight to body ratio
Built on android tv 9.0 so supports Google apps via play store and also can chromecast using your phone/tablet plus also has full google assistant voice control feature
Anker are consistently sending timely updates to improve the projector in various ways so great support from there end
This portable projector comes with a 65watt usb c pd charger that can be used to power other devices that support usb c charging
The picture quality of the projector is great and the 400 ansi lumens are good enough when the lights are turned off or dimly lit room
Auto focus works great everytime and hardly needs to be messed around with as well as the auto keystone correction
You do have the option of manually adjusting the 4 corners if required which is simple to do
Colours are vibrant and contrast is good but you can get better picture quality if you plug in a firestick 4k which further improves the projected image
The little kick stand is very helpful when you need raising the image slightly upwards
Fan noise is not very noticeable when it calms down 2-5 mins after starting,it some times get stuck at higher pitch which you can resolve by circling between standard mode and power saving mode and back to standard mode
Battery lasts 3.5 hours on battery saver mode or 2 hours on standard mode broghtness does drop slightly when in battery saver mode but not by much

The dual harman kardon speakers do a great job giving you a nice full rich sound in a mid size room and the projector has a bluetooth mode in which the projector screen turns off and the fans go silent and you can play music/podcasts etc from your devices which works fantastically
All in all Anker nebula solar is a well thought out projector with some great features that can't be found on many other projector's
It's usually available around the £530 price mark and there is the anker nebula solar non portable version which is usually available around the £480 that has no built in battery so has to be plugged in using the dc cable for which you can find a barrel plug and also use with a usb c pd charger that supplies enough voltage if you like

I tryed to cover as much as i could in this review
Hopefully it's helpful to someone who's on the fence about buying this particular model projector

After reading reviews for portable projectors I finally chose the nebula solar. This was solely for the campervan however the grandkids love it in the house too.
Bought on prime day making the projector even better value.
The light is excellent when used in the van or a dark or dim bedroom.
The build quality is excellent, I xan recommend this projector

Bought this to do big screen events while travelling, eg football, films etc. Has already come with us on trips to Wales and Norfolk and the ease of power, focus and keystone correction makes for a great travel companion. It isn’t a “daylight” use projector, you will need to pull the curtains, but it is impressive in a not completely dark room. The interface is very easy to use if you have android or Google TV on another device. Using Netflix is a little faffy in that you have to go via the nebula app and install an app on your phone. For iplayer content just chromecast from your phone. All in all, very impressed.

Solar Portable