I listened to the Restoration EP just now. It's... my least favorite Haken release so far. It's certainly good, but all of their other releases are a lot better. These are merely first impressions, though, so it's possible that this one will really grow on me, and perhaps even become my favorite Haken release. And since there's only three songs, I'll give my thoughts on each one since it shouldn't take too long.
Darkest Light is #3; I admit that for some reason, I had a hard time staying focused. This isn't the fault of the song, this is just a problem I tend to have when listening to new music. It was still good from what I remember, but that being said, I can't recall anything particularly interesting outside of the intro.
Earthlings is #2. I really like the atmosphere in this song. I can definitely see this one growing on me a lot. I'm not sure what else to say about it for the time being, but it's a very good song.
And #1 is, well, Crystallized. I've seen a lot of people say that this is Haken's greatest song. And I can definitely see why after hearing it only once! That being said, it's not my favorite. It's in my Top 10 Haken songs for sure, but at least as of right now, I wouldn't call it my most favorite of them all. There's nothing really wrong with Crystallized, but I feel like there's a couple parts that should have been shortened or removed, like the acappella section in the middle of the song. I don't mean that the song is too long, I just feel like there were a couple sections that didn't necessarily fit with the song. Like... imagine if you inserted part of BTBAM's "Medicine Wheel" right before The Crimson Sunset in A Change of Seasons; it'd sound really nice, but it wouldn't work. Small criticism aside, amazing song! It's easy to see why it's considered their best song yet.
Well, only one album left to go (until Virus releases, that is). From what I can tell, Vector tends to be a lot of people's least favorite Haken album, but I hope I enjoy it regardless, as I've been really looking forward to this one lately. Coincidentally or not, my favorite albums happen to be the unpopular ones (for instance, my favorite Dream Theater album is BC&SL), so maybe this might end up being my favorite?
Also, as a side-note, ever since I gave my impressions on Affinity, it has grown on me quite a bit, and I love just about everything on it... except Red Giant, that one's still my least favorite.