I have the Avmap Ultra EFIS in a CH601HD. I like it, but I am only a rec pilot.
Simple to set up....only has pitot, static, power and a remote GPS antenna.
I am still playing with the VOR, ADF and stuff, as I found it a bit inaccurate initially, but have recently carried out another compass swing type calibration and the results seem a lot more promising.
Same goes for the HSI page with wind speed and direction.
It is a bit on the small side, but then it does bolt straight into a 3 1/8" hole. I pulled out an Allen AH and stuck the EFIS in.
They are just bright enough in the QLD sun at midday.
The do feel a bit cheaply built, time will tell, It's been in there a few months now. Don't spill fuel on it!
The screen hates it.
For the money I think they are good value, especially when you see how much the others cost, but maybe cost isn't an issue for you.
It's got no maps, just a database of airports you can enter for the VOR/ADF, but you can add your own POIs.