As blizzard wants at least 2/3 of all players play ranged classes I tried some and was disappointed - they feel clunky and old, like somebody added a lot of stuff to something old without reworking it properly and too may buttons that serve only to take up keybinds without doing anything fun on activation - rune of power, doubletap etc.
Many classes feel like somebody stuck 2 or 3 ideas together or have extra buttons for the sake of having more buttons that arent any fun to press. A lot of them are missing nice big impactful stuff that feels satisfying to use.
Marksman - kinda ok-ish, but feels tedious to setup Doubletap, covenant trueshot, volley some of them would feel nice, but there are simply too many of these abilities that you drop before doing rotation, and steady shot is just meh
Mage - Hate rune of power, feels like boring cast that takes away time killing stuff, but too OP to ignore
Arcane - Arcane explosion feels really bad in dungeons, spamy, forces in mele, non-mage-ish reason i didnt play it more
Fire - didnt click with the class has potential, but scorch/fireball feels same-ish, and like somebody added one just for sake of buttons. spreading with phoenix flames is nice, but using during combustion didnt feel good
Frost - frostbolt fishing is meh and aoe outside of orb feels meh + rng
Shadow - next to DK dots, SP single target dots feel like ancient relic without easy multidotting, few abilities are boring clones added just for sake of having more buttons, like Mind sear and Mind flay, and generally way too many buttons that arent fun to press
Elemental - one of the best, but spenders dont have visuals comparable to builders and i dislike the elementals, would love some lonely winter type of ability, stormkeeper looks nice and going full sith feels great, but should it be a 1.5 sec castable ability, it doesnt feel good to press the button, its the next buttons that are fun
Warlock
Affliction - not played much, multidotting single target skills doesnt feel good, same as shadow, make it like dk or smtgh
Destro - Chaos bolt feels awesome, but thats about it, rain is a meh, feels like it forgot half the spellbook, with additional skills from talents it might be much better, but they arent optional, cataclysm replacing immolate with channel demonfire as baseline would feel much nicer