I used Jepp charts from the time I started my IFR training. My primary reason is because they cover the world and are used by most of the operators around my local airfield. I figured that ctarting with them would save me money instead of changing later on. They were also recommended by the training company (I'm sure the fact that they were the local distributors as well had nothing to do with it!!
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I have since looked at the two and found that the main difference is the approach brief on the Jepp charts is far easier to use and it all runs in an easy to use/practical order. Jepp's customer service runs rings around airservices. I've had a couple of amendments arrived damaged by weather or the post office. Jepp have had a replacement to me before the due date every time!