Pretty decent roadside repair, Skabs also seem to work well. I do prefer an old school repair though if I'm honest.
For any reason?
Some people do seem to have problems with ready glued patches. It's usually because they don't know how to apply them properly by rushing the application.
(not saying that you don't Si)
I've never tried Park tools ones, but I hate the cheap ones from Wilkinson - dunno if it's user error but they never seemed to work long term. OK to get home etc but not long term. I just fit new tube and patch old fashioned way at home.
I will keep an eye out for Park ones in sales though, as I do tend to have a couple in saddle bag Justin case I have more than 2 p*'s in a ride (never yet).