Moto X: Exchange Email Woes (Help!)

Hey all, Just got the Moto X a few days ago, but the phone seems to have very poor exchange support (worse than the iPhone or Windows Phone). I was wondering if anyone's found solutions to the following:

1. Critically: the email app, which I use for exchange/work email support, has no threading/conversation view support. I tried every mail app I could find on the Appstore, but I can't seem to find one with Conversation View, that also searches mail on the server (the stock one does this but doesn't have conversation view). (I hear the Samsung phones have this conversation view feature but I can't seem to find it on the Moto X?!!)

2. Creating a meeting on the exchange calendar does not seem to allow you to add guests/invitees. I've heard a lot of people sing the praises of Android, but I don't understand how it could be so awesome, and yet be missing such basic features. (Use Gmail isn't an argument, not everyone's work uses Gmail and one shouldn't have to switch email providers for such a basic feature).

Anyone have any ideas? Perhaps any apps or hacks that solve the above issues? Else I'll just swap the phone for an iPhone 5s as I'm within the 14 day return period.