Bought my EX in Aug 2016 at 4 yrs old. It had an outstanding recall then. It's only taken Honda 3yrs 6 months from then to finally take it in for what was now TWO recalls.
Like others there was the fear of the unknown - will they break something, misfit interior panels, upset the radio, the one touch auto windows, etc.
The only things I noticed on collection were:
1) That it only took half the time they said - est. 2.5-3hrs. Got a phone call after 1.5hrs.
2) The car was cleaner than when I took it in.
3) MY immense relief that it's finally been done.
Everything else worked as it did before I took it in. Nothing for me to reset, reprogramme or retune.
Only three things let them dowm:
1) The inordinate time it took to get round to it.
2) The failure to offer a courtesy car - a missed opportunity to get me to at least TRY a Mk4.
3) The inordinate time it took to get round to it.