Enduro and DH timing with segments

I recently read this great thread over on vital mx (litpro vs. crossbox) about the different gps systems for timing in mx.

Does anybody have experience using a higher end gps for recording their rides and comparing segment times?

I have seen tech shots from the pros using them but Im curious to hear experience before I buy one to test out.

With very few organized races in my area I have started to do more strava races except its a total bummer when the ride doesn't record or has an error.

I ride in the PNW woods and gps signal for my iPhone and suunto is shotty, especially when it comes to uploading my rides onto strava.