Well, I guess I'll share my experience since I've had the luck to play with Feneckus this morning.

I was doing some PUGs to get used to run a claymore on my drellguard, and was quite low on morale since I couldn't find a decent host and ended up sucking everytime. Still top of the board, but that doesn't count to me if I'm dieing twice/wave.

So, I decided I'd have some easy cheese and selected my talon GI. I'm trying to learn how to use it best, but I can already easily wipe spawns with him. Not that it takes much skill

So, I search for a match and I finally find a lobby after 2/3 mid-games.
My first thought is: unknown/reapers, that's ok. No Geth so I won't quit for that.
Then, I take a look at the host loadout: Justicar with harrier X and full consumables, he obviously can handle himself.
The second guy is a 500ish N7 with a phoenix with phaeston II and without consumables, not even gear on. Will need carrying. If it was my lobby, I'd kick him, but it's not.
Third guy is a fury with 3k+ N7, looks nice, and he's sporting... Wait, what? Is he really using a claymore on a fury?
What a noob! 
He'll probably need carrying too.
So strange though, he's using all max consumables, gears, weapons, his N7 is pretty high...
Then a thought hits my mind. I recall I heard one of those godly players saying that he likes a claymore on the fury. So I (finally) take a look at his name and, surprise! He's Feneckus. So, yeah... I put my best consumables on and prepare to try hard to find something to kill.
He ended up changing the kit to human soldier with harrier X, by the way.
As it's already been said, the guy's a machine. Easily the best player I've played with in a team, alongside Diablerist. Not sure who's better, hard to judge when you reach certain levels of awesomeness.

I really liked his way of playing, as he's obviously not caring about scoring, but about the mission. He will revive, and won't farm objective waves at all. He'll do the objective first of all. And given that we got devices twice, I had time to see that.
In the end, he ended up with something like 170k points I think. I had around 140? and the host had around 100. Don't remember the numbers exactly, but they don't matter much to me.
Time was around 17 mins on reapers/giant.
A very smooth and enjoyable game, and as I said, I consider myself lucky to have been able to hit a match with him.