A few days ago I decided I was gunna go ahead and review every Gem Hunt level that was considered for 70-79, now called pack 8, and now that I'm done, I thought it'd be a good idea to dump all my reviews here (also to make NF proud). All of these reviews can be found on the Master Sheet for each level I reviewed, but I hopefully plan to update this thread with any other gem hunt levels I play that people upload.
For starters, let's go over how I rate shit, this will be the general gist of my thought process:
10/10: A special rating that goes to the rare gem hunt level that I literally can't find a single fault in and that I enjoy playing endlessly.
7/10 - 9/10: Levels I would love to revisit, even if it has some flaws or even a major flaw that doesn't affect me much.
4/10 - 6/10: Levels that are basically average in my book, they can play nicely but if nothing about it is inherently great or bad they belong here (Marbleland is a great example, instant 5/10 since it's the flagship "boring" level for me)
1/10 - 3/10: Levels that I don't particularly enjoy playing for too long, for a variety of reasons or one huge reason that bothers me
0/10: The "I'm never playing this again" rating
Now for the levels and their ratings:
Nightmaria by Blasted: 6/10
Plays nicely, although its not my favorite to run due to the 1x1 pillars and lack of blue spawns in more common areas of the map. Also, a 130 AS in singleplayer is too high of a challenge score for the average player given the plat and blue rates. I would recommend lowering the challenge scores to 60 PS, 90 US, and 115 AS if you don't wanna mess with spawns.
Inferno Ring by Ignas: 7/10
Gets a 7/10 despite the unbalanced spawns because the layout of the level itself is enjoyable to traverse outside of like, 2 minor things. Powerup placement is perfect as well. I would suggest putting two yellows across from each other diagonally on those center pillars so that the center spawn isn't as broken as it is. If the spawns are to be kept as they are the challenge scores need to be 80 PS, 120 US, and 160 AS respectively.
Beacon by Blasted: 3/10
This map would be a lot better if it was shorter in scale, much like the original Architecture (although admittedly I'm not much a fan of that map too). I'm sure someone could get very good at this map with enough practice but the high blocks and certain sections where the blocks are super packed make for some awkward movement in my experience.
Basin Hill by CylinderKnot: 8/10
Flying across this map from one end to the other is honestly one of the best feelings in the world. Not to mention that there are also shocks and super bounces to help you get some gems quicker, especially for some of the more awkward spawns. AS is set at a reasonable 110 which does require good map knowledge to get, although I personally would've set it at 115. It's awkward traversing this map without a powerup at certain parts and I would've liked to see higher places to get up since this is Parkour Peaks inspired, but overall it still plays solid.
An Allegory for Economic Mobility by CylinderKnot: 6/10
I personally like the top half of the level more than I do the bottom half because it feels a lot easier to move around in, though that might be intended given the name of the level. This did play above my expectations though so I will give it that. The big teleporters are a cool concept that I liked using but when there's a spawn that's awkward to get to from your current position (no good teleporters and/or weird terrain to traverse) it's basically an instant reset for me.
Four Stairs by Yoshicraft224: 6/10
As a gem hunt level I think its pretty neat due to the sheer amount of gems you can collect very quickly, but it would be a lot better as a Gem Madness level with a 30 second time limit. I'm thankful for Yoshi putting blast here because without it I probably would've given it a 4 or 5 out of 10 (Spawn abusing also helps sometimes). 105 AS is way too easy though, I got it on my first finish. Challenge scores should be changed to 90 US and 120 AS.
Golfland by Frost: 0/10
I would rather get fucked in the ass by a dude than play this.
Marblitzan's Temple by Yoshicraft224: 2/10
I personally liked the first person perspective, but the way in which it was executed was just disappointing. The tornado here is really bad for the first spawn especially because the plat is literally inside the tornado. There's no way to get up to the 2nd floor from the tornado room alone and a stupid glass wall blocking one of the entrances in the 2nd floor. The level as a whole doesn't have much to offer outside of that.
Panels - Gem Hunt by QwertyQwertz: 4/10
I don't really have much to say for this one outside of the fact that the low gravity section is a little annoying. Its not bad, but its not good either.
Spaceballs by Nedison: 1/10
Good scenery but plays horribly.
Sequence by RandomityGuy: 4/10
Concept is nice, but it's repetitive and it plays out too long. Challenge scores need to be buffed too.