Before my 1.4 Civic I drove a previous gen 2005 1.4 Civic!
Before that my last two cars, a Mondeo and C-Max were both 1.8's.
I chose the 1.4 as I wanted lower fuel bills and I've always been able to get plenty of oomph from smaller engines anyway. One of my previous cars many years ago was a 954i Citroen AX, and I could bomb along in it fine. You just have to learn how to get the most performance from a small engine, you have to get the gearchanges just right.
You will find the 1.4 Civic no trouble on motorways, it keeps up with the traffic no trouble and I have no problem overtaking either. Its not at all tiring to drive, even with my disabilities I can drive for hours in comfort. The i-Shift makes the 1.4 quite a bit quicker than the manual version though. I think it feels more like a 1.6 litre engine.
As for searching for 1.4, you'll probably have to go through the user reviews manually, a pain I know.
As for you asking questions, its no bother at all, its what we're all here for. Just ask away, no matter how trivial the question, I'll try to help if I can.