On the plus side, this is a great little guide for people who want to bring in their old characters. It has a lot of info and guidelines, and it also gives a better idea on the change of power level between the two editions

That said, the major downside of it is that it only really looks at conversions for characters from the core rulebook of fourth edition. This isn't a problem for the most part, and is only expected this early on in the new edition, but in the cases some characters (unique character races, magicians with non-hermetic/shamanic traditions, etc) it can make them seem almost untransferable. Hoping to see this be updated more in the future as new rules come out.

I found this really helpful, since I have a bunch of SR4 characters I love and didn't want to leave behind. This lays it all out in a simple and straightforward manner.