People are always advocates of what they have and somtimes try to convince you into making the same decision to justify theres.That said I have installed both dynon and advance I personaly prefer Advance , much better tech support ,sometimes dynon just considers it a bother to help and can be condecending. Advance has most componets built into the units(ahrs,back up battery etc.)this makes install easier. The advance color and brightness are excellent ,unit has never failed .The dynon unit failed witin just a few hours,something due to back up battery.When I decided to up grade my advance from a 3500 to a 4500 advance sent me a loaner at no charge.
I'm sure people who have sky views must be satisfied , not trying to tell you what to buy just passing on my personal experience.what ever you by you will get alot of bang for the buck. Good luck Jerry