Since 1985 I have paid on my mortgages a wide range of interest rates. From 16.25% to Prime minus 0.9% (and just about everything in between).
Today's low interest rates are at record lows and will frankly stay low for a fairly long time given the flight to safety (bonds) and the need for continued economic stimulous in most countries and the demographics of North America. The largest and wealthies cohort in history (the Baby Boomers) and their companies are sitting WADS of cash, sitting on the sidelines. This pile of cash is keeping a cap on bond yields - which drive the mortgage market.
The more important part of your mortgage that should be looked at is NOT the rate (that is where consumers focus) - it needs to be on the terms, penalties and flexibility of the mortgage. If you chase rates, you will end up signing on to a mortgage that will eventually come and bite you hard if you ever need to make a change, move or sell.
The 2nd thing that consumers (and most investors) are not understanding is that today, now more than ever in fact, choosing which financial institution to get your mortgage(s) at and in what order to do so can make or break your ability to get further residential mortgages as you build your portfolio. (Hint: don't use the EASY banks first!).
Rates are low. If you see a 2 in front of the rate, you should smile. But be strategic in ALL that you do. Rate is inconsequential when compared to the other considerations.