I think your experience will be very different to mine, as you're overdue and have had a show...if you're ready, which you probably are, there's a good chance of it going very well. My own was earlyish, at 39+4 due to raised bp, and I had a tightly closed cervix which didn't change one iota in spite of three gels over 24 hours.
Gels were not too bad to have inserted, except that my cervix was so far back the midwife was up to her shoulder to reach it (sorry!) which wasn't too pleasant - but again, thats because I wasn't 'ripe', as they say.
I had very little action after the third gel, they couldn't break my waters, and my dd's head disengaged due to excess fluid, so we moved on to a section - which, once I'd got my head around saying yes to it, was calm and happy and resulted in dd which couldn't have been lovelier.
My friend, on the other hand, was given two gels in quick succession which sent her into strong and rapid labour - the second time she was induced, she insisted they slow things down and it was a LOT easier. So even though slow is boring, I'd opt for one step/gel at a time given the choice!