I thought I figured out why Deerber likes it, because he likes close quarter (which is how I discovered it's use). But off host if the connection isn't good enough, yeah, it suffers because of it's delay and failing to see yourself getting health gated. And doesn't Deerber play mostly off host? Or do PC players have that much better connection?
This Gear is also making me want to host more. That and if you want to do much better with close quarter kits, hosting is the way to go anyway.
Lol! Man, my connection is likely ten times worse than yours. Sadly, gaming on a powerful machine doesn't necessarily mean its connection to the internet is good as well. Especially if you live in 3rd world countries like I do (kidding, okay, but... Sometimes it really feels like that).
As for the usefuleness of ops packs, hell yeah, I like to be in CQC pretty much 100% of the time, and ops packs are a life saver there, especially if you're off host, as you say. They're by far my most used consumables, and I have a hard time recalling the last match I finished with any of them left.
I agree with Clyde in that the Scanner is superior and Assault loadout is very underrated too (it's one of the three pieces of gear I actually use... Since I have no use for Armored compartments). However, I strongly disagree on the fact that ops packs have no use unless you're a scrub. In fact, scrub or not, they allow you to play a lot more aggressively than you otherwise could. I know I manage to play much more aggressively than pretty much anyone here, and a good portion of that is due to me having no fear of actively using ops packs to prolong my exposure time and, consequently, my firing time.
If you need ops packs to survive, in this game, then yeah, you're probably a scrub.
But if you're using them to play more aggressively than you otherwise could, well... Then you're one step closer to making the most of your in-game consumables. Which is definitely a skill very good players should possess.
Plus, there's something hella cool about not giving a single **** about your shields and health dropping like crazy, not even trying to avoid that, dodge, get into cover or anything. just keep firing on da bad guys like there's no tomorrow and murdering a whole spawn while shrugging off any damage thanks to a timely ops pack. It's hard to describe it, but I think anyone who's been there knows what I'm talking about.
Bonus points if you're packing a Brophoon and you hot reload it by TCP.
Dat carnage.
But we all know Deebo is a shameless scrub, so his opinion is invalid.
Oh well yeah, there's also this. Sorry, forgot about it. Ignore what I said above 
Most gear isn't that useful simply because there are better options.
Survivor Loadout (not survival btw) gives you a 20% shield bonus. Which is adorable and not even remotely useful on a Fury since she has 500 base shields and it adds +100 shields. Wow. Three more ops packs don't make a significant difference either.
Someone mentioned Assault Loadout. Yeah, it's not bad... but unless you play Plat with a Harrier kit and/or rely on replenishing your grenades through Thermal Packs, I see no reason to ever equip it. Densified Ammunition adds 2% more weapon damage and if you use Berserker, Warfighter, Shock Trooper, Expert, Operative, Guerilla, Combative or Commando you get 4% more. Not to mention the uncommon gears that add 15% for a single weapon.
Geth Scanner, Grenade Capacity and the damage gear are just better than the rest.
I see no reason why I'd ever equip the Survivor Loadout, Medigel Transmitter, Responder Loadout, Barrage Upgrade, Mental Focuser, Multicapacitator or Thermal Clip Storage if I have access to other gear.
I'm sorry, but I think you're really, *really* underestimating the importance of in-game consumables.
The point of survivor loadout is not the +x% shields, which is nothing. It's all about the + 3 ops packs, just like assault loadout is just about the + 3 TCPs (although assault loadout's secondary bonus is actually pretty good too).
You're telling me you have no use for a +50% possibilities in a match to increase your weapon damage output by +100% for 8 (?) secs? Really?
Well, between that and the fact that you're dismissing more ops packs as an afterthought, I'm starting to question whether you're playing at your best or not, you know? No offense meant, but relying on in game consumables definitely helps to push one's gameplay further.
Then, obviously it's all cool and right if you just play to have some casual fun, it's what the game's supposed to do anyway, be fun. But maybe you shouldn't be so quick with your statements when people are probably arguing about things from an effectiveness point of view, more than a fun one. Fun is subjective, after all.