For a very long time, I said I'd never use a net. Then one day, I won a Moby in a photo contest. It sat unused in my closet for 2 years. Then Kitty started fishing with me. I never cared much if I lost fish at the beach, but she did, so I grabbed the net to see if it would help. Not only did it help significantly with landing %, but I did indeed find the fights were much quicker, as the fish couldn't go on their last run.
I've often heard of the excuse that nets are too much of a hassle to carry, etc. I always though that too. Now, it's just a part of my gear that I don't even think twice about. Bush crashing through nasty stuff, I just carry it with my rods. Down on the river, it sits down the side of my pack. It's literally hands off the entire time, unless I'm needing it to scoop a fish.
I'd honestly stay away from a collapsible or folding version. Just get a full length of one of the Moby's. If you carry two rods, a long net won't change anything. If you don't normally carry two rods, you can throw it through the wading belt when you're working down a run, or carry a pack and put it down the side. A fold-able net will probably end up being more bulky and awkward than a standard one, but obviously, that's just my opinion.