Not sure if this was the place for general impressions but I didn't notice a thread for them so here goes:
Disclaimer: all impressions based on a few hours of For Glory play.
So I spent the afternoon messing with Lucas and while it took a bit of getting used to, I'm pretty happy with him. I found solid results playing him zoning with PK Fire and PK Freeze (The endlag's short enough to mess with aerial approaches a little, at least in the wonderful world of FG) and smacking them with tilts and jab when they got in.
-His grab feels about as good as a tether grab usually does with the added "fun" of being one of the shorter tethers. A shame, as his throws are all excellent (BThrow is FRAUDULENT, if not as fraudulent as Ness's). It's nice to be able to tether recover though, because PKT2 is WONKY. I literally hit a ledge head on once and still bounced off.
-Speaking of PKT2's wonkiness, it's hitbox is also deceptive. I've hit people who were nowhere near Lucas near the end of it. And then sometimes it gives me the multi-hit and other times it'll knock them away right away. Weird move. And PKT1 is bleh. It's nice when you trap with it but Lucas has like twice Ness's endlag afterwards so onstage use is pretty much impossible.
-Lucas has a solid edge-guarding game. PK Freeze is quick and the short endlag can help set up traps, and Down smash's hit box is nice and big for thinner edges like Battlefield's. If you space it right you appear to be able to cover the roll option too since the third burst hits behind him.
-Dair is blah, Fair is okay but I wish it autocanceled on short hop, Nair launches at a nice angle for follow ups, bair is okay, and I can't figure out Uair's hitbox at all but it feels good when it lands. Meanwhile, magnet stalling is nice for jump mixups with it's stupid low cooldown and solid hitbox. And when he uses an aerial during his second jump, he seems to stall in the air for a bit. Weird, but it helps him when he does a rising aerial back onto the stage.
-UTilt is a great anti-air. So is Ness's for that matter. People should use them more. Having a quick disjoint above your head is super nice. FTilt is passable and I don't quite get DTilt.
-I LOVE his down smash and I probably use it too much.
Overall: I'm a fan, though I can see why people have mixed opinions. Especially since he got released alongside two heavy-hitting combo machines while he's more a patient zoner character. I'm not expecting him to make a huge splash, but I could see a dedicated main performing well with him.