Again, what are the features you are missing?
mine has all the features that it said it would have, and most of us don't experience the same repeating issues that the few reported here.
I have no beep issues, even from the pre v1.7T days, no missing recordings, no time gaps, no overheating shut downs, parking and driving modes switch when they suppose to, event lock files are created and locked when they suppose to, parking mode recording persists even over 32 hours, turning off when battery dips below the set threshold.
I wired my hardwire kit my self, properly referring the bat and acc labels, instead of blindly just following wire color and connecting them wrongly like others have reported.