If you're talking "huge" folders, I presume you refer to the Pentagon Elite II. Excellent folder, in my opinion. Ergonomic handle that offers secure grip, yet is not so "grippy" that it won't slide into & out of pocket or waistband smoothly. Sharp, strong blade (especially durable tip design).
Easy-opening? The Arc-Lock and the long, heavy blade combine to make inertial opening effortless.The thumb studs are easy to "roll" open, too.
Once deployed, the Arc-Lock is extremely strong and reliable.
I have no criticisms, and I also own mega folders from a number of other name manufacturers (Camillus, AMK, Cold Steel, Benchmade, etc.).
The PE II is a lot of bang for the buck!