(i am roughly 400 in 1v1, 850 in 4v4. also sorry for the novel. i have thoughts on this being on the lower end and very interested in growing.)
the map pools, i really like that low ratings have their map pools restricted to prevent overwhelming them but at the same time i think some of the maps put into the lower ratings are straight up "you learn X or lose your rating instantly". which is a practical necessity and i really do appreciate that, but having to play navy heavy/cut up maps at this rating in 1v1 fucking sucks ass. crossfire canal, point of reach, eye of the storm, and seraphim glaciers are all maps that dissuade me from queueing up for 1v1. 4v4 doesnt have this issue as much as i can rely on others for help if need be.
300 customs vs 354 ladder. i strongly prefer matchmaking over customs due to the rampant astrogap. however my experience on 1v1 ladder is mixed. sometimes its a glhf; ggs, and go next. sometimes its silence and gameplay. but sometimes its screaming cyrllic.
at first i played more customs while learning the game, but i've reached a point where if its not a mapgen or standard-ish map, im either incredibly bored or instantly convinced im dead weight and will lose the game. since growing a hatred for astrogap and its fanatics, i've gravitated towards MM heavily. the longer i stay around, the more i stick to MM.
a steadier progression for lower ratings to the real various stuff like 20/15km, navy heavy maps. i know it sounds scrubby as fuck but when i open the map pool and see crossfire canal, theres a real heavy chance i just wait till the next pool. or even a map veto. a map veto would probably make me feel a shit ton better about queueing in. knowing theres a chance that it'd roll a map i just do not want to play and can not begin to give it my all being rerolled would keep me hanging in there, even if it rolls the maps i dont want to play, multiple times.
my ultimate problems with ladder is the map pool stuff. there are maps i have negative fun playing and would genuinely rather crtl+k as soon as i drop into them. take the points, i'd rather keep my time and sanity. maybe spend that time in a lobby waiting 45 minutes for 2 people to join and instantly leave. at first i thought how BOs worked in this game was really cool. how it was so different map to map. having crawled my way through the game a bit, i can safely say that i actually really dislike this. its variable to a degree i cant properly wrap my head around. which compounds with the map pools feeling like the actual gate keeper.
i want to add that i fully understand a majority of what i said is skill issue, but they're skill issues that i have a hard to justifying attempts at too seriously. ideally, i would enjoy 1v1 up to the point where things start to get really slow/schedule-y. then at that point it'd be customs or smurf, one of which is banable. (thankfully i'll never be good enough to get to that point)