The only reason i ever wanted a 3rd party keyboard was i want the dark keyboard that you see in spotlight search. I love that look. So then i started looking at swift key, swype and fleksy. The problem is Apples iOS implementation of third party keyboards is not that great. If you have stock, plus emojis plus 3rd party keyboard it acts wonky when you want to switch. Not only that it takes longer for the keyboard to come up but when switching to landscape view its not smooth and can have odd UI artifacts or unexpected results (in my experience iOS 9.0.2, iOS 8 all versions). I use to jailbreak literally just to use bloard for a dark keyboard but i wont do that anymore with apple pay being something i use.