Probably staying with 4th. I was planning to try 5th, but I was lukewarm to limits and some of the other changes, and the matrix bonuses (basically, either be gimped, or get the functionality you used to have at the expense of being a hacking target) really put the nail in the coffin for me. If an errata fixes it (like SR4A putting the changes to direct spell Drain into the optional rules scrap bin), or if there is some ingenious player work-around, then I might reconsider. It's kind of disappointing, because the previews actually had me looking forward to the new edition.