So I've been playing Highlander since day 1 of his release (yea I'm a season pass scrub lol, but I love him regardless) and there have been a couple things that I have noticed (one was recently fixed though).

1: His GB range was garbage (that was fixed in the last patch though, thank god)

2: I've noticed that his Light - Light combo has a, umm... I don't know what to call it but it's a lot like the old Valk's Light - Light - Light combo. If the last light is blocked then the opponent can get a free GB. (whether or not this is meant to be there by the devs is unknown, but I doubt it since it's a Light attack. It's not extremely fast or anything so it's easy to guard and makes it pointless to use the combo)

3: His chain finishing heavy is exceptionally fast. So much so that even I find it a little bull. Though it may be fair since it can't fast flow into offensive form.

I'm only a Rep 3 with the HL but my overall Rep score is 29 (I only play 1v1 since I hate the concept of ganking in 4v4) and I do believe that I am a decently good player when it comes to 1v1's and strategy. I learned HL very quickly and a lot of people actually have a hard time defeating me. I fight a lot of mirror matches as well and the HL isn't that big of a problem most of the time. So if anyone needs tips on how to play against him or play as him I got all of it down pat.