Not sure if this has been discussed here before (I couldn't find anything) so thought I'd post this in case it might be of interest to anyone.
Bought a fair few of these last year at an average of 85.50p including costs as it seemed a way to get exposure to a range of fixed assets that I wouldn't otherwise be able to (illiquid, high minimum lot sizes, overseas issuers etc.). They target a yield of 6% pa and pay out monthly, so it's quite nice to receive those payments regularly. Price has gone up since I purchased so maybe not quite as attractive now but I'll probably buy more if price droops. Average rating of holdings is BB- so bear that in mind.
Obviously, there's a management fee to be taken into account but I feel that's worth it for having someone who knows a lot more about this than I do and gives me access to a sector that I otherwise couldn't.
This is definitely not a recommendation - just something to research and I'd be very interested to hear anyone's thoughts.