I've played my Elite marksman up to clvl 10, she's at Oxford Circus at the moment. I've been skipping side quests in an effort to speed through the game a bit faster, and possibly have some quest XP to fall back on once she's done grinding to the point where it's odious to continue doing so. Right now she's fighting monsters 2-3 levels above her, and doing ok. Act bosses might be anohter matter.
I haven't noticed that there are all that many more monsters than normal mode, with a couple of exceptions: namely, fellbore packs. These popups normally come in groups of 3-6 in normal, whereas in Elite they tend to show up in packs of 5-10, maybe more later. Definitely bring some AoE! The monsters in Elite do move faster than the monsters in normal; this coupled with the lack of inhibitor bots and drone for tanking makes my marksman feel squishy at times. However, sniper stance is a plus when she can use it, and I anticipate the power of ricochet/reflect/rapid fire making itself felt later on.
Item-wise, I have been finding a lot more legendary items than I did in normal, despite not having a lot of +luck gear yet (though I plan to collect +luck on my gear for this char.) Partly this is due to there being more rare/epic bosses, but also there seem to be more legendary drops from regular monsters. If you play an Epic character, plan to equip your character pretty much entirely on what you find; everything sells for half what it did in normal, which also affects how much materials you get out of things you scrap. A lot of white items scrap for 1 gold even well into act 2, and paying for heal injectors actually puts a significant dent in your character's budget. (I seem to be finding fewer of them too, but that could just be a perception bias.)
Anyway, things seem about as fun overall as normal, though obviously the above differences make for a different experience in some respects.
I haven't noticed that there are all that many more monsters than normal mode, with a couple of exceptions: namely, fellbore packs. These popups normally come in groups of 3-6 in normal, whereas in Elite they tend to show up in packs of 5-10, maybe more later. Definitely bring some AoE! The monsters in Elite do move faster than the monsters in normal; this coupled with the lack of inhibitor bots and drone for tanking makes my marksman feel squishy at times. However, sniper stance is a plus when she can use it, and I anticipate the power of ricochet/reflect/rapid fire making itself felt later on.
Item-wise, I have been finding a lot more legendary items than I did in normal, despite not having a lot of +luck gear yet (though I plan to collect +luck on my gear for this char.) Partly this is due to there being more rare/epic bosses, but also there seem to be more legendary drops from regular monsters. If you play an Epic character, plan to equip your character pretty much entirely on what you find; everything sells for half what it did in normal, which also affects how much materials you get out of things you scrap. A lot of white items scrap for 1 gold even well into act 2, and paying for heal injectors actually puts a significant dent in your character's budget. (I seem to be finding fewer of them too, but that could just be a perception bias.)
Anyway, things seem about as fun overall as normal, though obviously the above differences make for a different experience in some respects.