The biggest thing I noticed was the charts are very different. I only flew with an instructor for 2 hours before (just getting to know the area) I went buzzing around the circuit in the rain. I did not want to do too much flying with an instructor as I did not want to feel as if I needed one for every flight, and you also learn more when you are on your own. This is the stage I am currently at, I feel as I know the area enough to be happy flying over the countryside, amd before I do a x-country I plan to get briefed by an instructor.
Iain