Yes, I recently switched back to the iPhone SE. I was lucky enough to be able to grab one when Apple put them on clearance. I've been a fan of Apple products since the early 80's but that is coming to an end.
I am tired of these gargantuan IPhones. They are heavier, thicker, and are not comfortable in a pocket.
That aside, they aren't special any longer. They follow in features and capabilities from the likes of Samsung and HTC.
Just my two cents, but after buying a new iPhone every year since they originally came out, I am done until Apple makes one that is reasonable in size, like the SE.
By the way, there are rumors of a new Motorola Razor coming out. If that turns out to be true and it is roughly the same size as the original, I may be done with iPhones altogether.
My advice to Tim Cook & Apple is to lead, follow, or get the hell out of the way.
Apple (under Tim Cook) has lost sight of their guiding principle: "Think Different". Instead, their new tag line should be something like, "we're just different".