No expert; 170hrs ppl, training and aero, no long distance, only used three other types before.
Bought new had for 3-4yrs. moderately regular use,
Good--good quality, simple construction, light, reasonable sound protection and microphone(and that's in a Pitts), folds small, stays on head during beginner/ standard sequences (may need additional band / headcap for intermediate and above)
Not so good--occasionally part of the wire in the headband presses irritatingly on the scalp, had one occasion where seemed to be incompatible with another pilots headphone (lots of other occasion no problem.)
On balance...HAPPY would recommend.