I had a one off need and decided to get a "cheap blade" to do the job. I needed to trim a few mm off the bottom of two garden shed doors (All of my serious gear is packed away so deep for moving that buying a blade for my easily accessible TSC55 seemed prudent!)
Obviously garden shed doors are thin, cheap things but I was still extremely impressed with the blade .. I could have been running it through a sheet of paper for all of the resistance it offered and there were minimal sparks. I've got no idea about the longevity of this blade, but if you have a smallish job I wouldn't hesitate. I could have easily done the same with the HKC55.
I paid $77AUD for this blade and that's less than half the price of a similar purpose FLAI.
I'm quite impressed