RE:FFN preferred shares.Well I feel it is a great spot to keep your portion of investment you wish to hold as cash and get a return. Looking at 10 year charts gives you the story.
The return is steady, monthly and if you don't sell when they do an offering, pandemic crash or market small correction you will get back to your 10$ or so. Pretty hard to get that with GIC.
Last year did the same with my cash portion of RRSP and TFSA buying DFN pref .....still holding.