I've bought two kilts from fredonline, both around £15. The first is an all black poly-viscose that I use for DIY and gardening. The other is an acrylic in what appears to be Burberry pattern (I won't call it tartan). I just use it for what it is - a casual kilt. Both are comfortable and as I keep away from naked flames, the material is not an issue. Both fit me acceptably and the service was good from fredonline. These klts go thu the washing machine, too.
No, they are in a different league to my Lochcarron etc, but then I wouldn't be tilling the good earth in them!

Like most things in life they are worth what you paid for them.

BTW I only ever wear my "real" kilts outside the confines of my home. Present the best to the world!!