Amen! I currently use, and have used, both iOS and Android virtually daily for the last few years. Android isn't complicated, it's just a pain in the ass sometimes, and a pain with really basic daily stuff. Case in point: when using my GS7E, I have to limit the number of gifs I text to people because I get an error stating there's no more room in the thread for another video. No such issue with the iPhone 6+. Is this one a big deal? Nope. But it's one of those things that pops up when using Android where you can't help but compare to how well stuff on iOS works without making YOU work to figure it out.
That's cause you're using iMessage vs standard MMS. Try turning iMessage off and do that.
I give Apple alot of credit when it comes to being so seamless, that users don't even realize they are using another service. For most users, texting is just texting.
Hopefully Allo is Google's answer to that. But I'm pretty sure it will be a transitional answer, rather than instant.