A simple +1 Strength may not seem like a large amount, but it can and does have a great effect. Consider the use on the fixed breakers, Mimic and Yog. Consider the use on expensive to pump breakers like Femme Fatale. It can, and will, over the course of the game save far credits than the two and a click it costs to install it.
Personal Touch is, notably, the only Hardware that is hosted on a program - the other similar types of hardware host programs on themselves. What this has for an effect on the game is not really clear - It may have no effect, there may come an odd interaction down the line where it does create an issue.
Personal Touch hasn’t seen a ton of use, but it is a solid way of saving credits, or putting fixed breakers up into a higher range. It also saw use with Darwin to help keep a strength after the corp purges virus counters.
(Written during the meta of Breaker Bay, part of the SanSan Cycle. For more reviews like it, visit wyldside.blogspot.com)