Not exactly a refi, but our 3-year mortgage was coming up for renewal as of May 1. When I logged onto my bank's website yesterday, there was an easy renewal offer. I know there might have been a slightly better offer somewhere else, if I'd shopped around but I also knew it would be a hassle to deal with the documentation etc, and this was a good deal (better than the publicly posted offer on the bank's website). And the whole process took 30 seconds.
So I locked in a 4-year mortgage at 1.69%, which is half our current mortgage rate and .25% below the advertised 5-year promotional offer, and I also shaved the last 3 months off our mortgage at the higher rate. (This is Canada, so no fees, no points, etc.) The mortgage includes the standard flexible prepayment options (15% of the original balance per year, plus the option of doubling any and all mortgage payments at any time).
We have a fairly large mortgage because we moved back to Canada only a few years ago and bought the house in a HICOL city. We're already FI and in four years we'll be seriously considering retiring, so the mortgage term matches our plans well.