Today I installed the Android O Dev Preview through the Google Beta Program. It seems to be pretty nice minus one major problem I could not overcome. MMS will not send or receive. I had gone through the steps of attempting other messaging apps, resetting the APN settings, wiping the Messages app and finally factory reset. None of these worked. In the end, only a couple short hours later, I had to revert back to Nougat. If someone finds a fix for this, please let me know.