I used
Connex on all my 10-speed chains. It's extremely easy to remove without tools. (But don't let either end of the chain go flying or it'll fling the half connector across the room!) I used the same link on two or three chains, then replaced it "just in case", but it looked fine.
Connex doesn't have an affordable version for 11 speed, so now I'm using Sram links. (Connex prices: 10 speed are around $12-13, but 11 speed are $30.) But I rarely remove the chain to clean it anymore. I just wipe it clean with paper towels dampened with rubbing alcohol and apply more lube. The chain still lasts a long time.
As an amateur mechanic, I always use quick links. I can replace my chain using a simple chain tool and not worry about getting the special pin installed correctly.