1) progress reset in 0.52 - but ok.
2) both in 0.51 and 0.52 (downloadable) you cant rly exit the game apart from alt+f4 or task manager - pause menu still should feature sound controls, keybinds (i accidentally discovered that holding alt gives poi info w/o mouseover) and exit button lol
even funnier, in 0.52 pause button doesnt seem to work at all too
3) prestige - i dont get it, you get +1 prestige (did it twice now) which is not displayed anywhere, when you hit your skilltree after prestige it just displays something resembling blue zero, or blue middle mouse button icon on top of screen, havent seen any changes to anything. should i prestige later? or its mechanic to just reset, giving you nothing? or that +1 prestige is nothing and i should do it much later in sectors
4) death to progress mechanics is kinda flawed. i managed to discover auto-salvage in 0.52 (never in 0.51 despite being quite very far) - you just again become very powerful. lets see how far one can go into sectors though w/o prestige or something. maybe new features should also uncover, alternatively, if you go deep into sectors w/o dying. i mean it becomes really hard to die once you get few augments, modules and upgrades. and bosses scaling/higher elite sectors only help you to die if you rly play to die :P
5) it looks like cap/overcap projectile speed makes your bullets miss a lot (or its shield absorbtion works im not too sure) - sector 30+ 30.7 projectile speed + max cooldown reduction bonus. can fire 2-3 volleys before hitting. though issue is only when shield is up it seems, so im not sure what it is, as game doesnt show visual feedback (if its absorbtion, some shield effect would be nice, if speed is too high for hits to register, its another issue). or maybe its their evasion chance - in that case some sort of visual feedback would be cool too
6) slotting +1 tier socked into tier 5 item does nothing, id expect the opposite (since otherwise those socket items are completely useless) - at least thats the case with decoy drone
7) donations, as well as quests xp not scaled to anything. major donation is 60xp at sec 35 when any skill is like 6-10kxp. quests i can understand - they are there to save new/augments modules for post-death or post-rebirth it seems