I was interested in it for a minute, liking how it's a gambit that sounds like "hacks so", but it doesn't have the best stats and/or requires a repertoire to go with it and decided against it. The accepted main line is brutal, but opponents don't have to cooperate
The Strength of the Haxo Gambit!

I've been playing the haco gambit for a week now and only one opponents took the gambit. Not many players seem to be taking the gambit.

Continue to play the haxo gambit or variations of and we have a much stronger relationship than a month ago.
The Haxo Gambit go's. "e4, e5, Nf3, Ne6, d4, exd4, Be4, Be5." Then your in the Haxo Gambit with so many possibilities!