Yeah, my neighborhood is VERY hilly. I use literally every single gear I've got. There's one hill I haven't even been able to climb in 1-1 (my Nemesis), and several short straights where I can grind out the big gears. I have no idea how fast I can go, but I could go faster with taller gears for sure. Might look into upgrading later just cause I love to haul ass.
Virtually no experience other than neighborhood riding on BMX and MTB. I'm just having fun with it. Not planning on doing anything serious with it at all, but I like to get the most out of my hobbies.
Learning how to properly set the bike up right now. Probably doesn't matter much since I'm not gonna be riding hundreds of miles a week but again, if something's worth doing, it's worth doing right.