I got a hold of the canon 6D, and its safe to say going full frame has been the best decision i’ve made with regards to my photography gear (aside from getting the 50mm 1.4 for that sweet DoF). Everything about the camera has benefited my photography - yes I know its not all about the gear that you use, but if that were entirely the case then pro’s would be using sub £500 cameras. Fact is, you need to be able to take a good picture in the first place, but having a tool that makes it easier to put your vision onto screen can help a hell of a lot. Investing in your passion is important, especially if a return is being made from it.
Ive still kept the 700D, it is hands down a great camera, however i can’t see it getting much use other than just being a spare for when I need it.