It arrived early this year in bits, but I hoped it wouldn't be too difficult for me to put together even with borked hands. It took a day or two, but I managed it, pacing myself and remembering once it was done it would be worth it (I hoped!)
I filled it with coir, farmyard manure, a generous bit of fish blood and bone meal, and marvelled (not for the first time) that I was working at waist height. No bending and groaning, no rushing planting seed because I was in agony. I was able to cover the lot (as it was still incredibly cold even in March and April), and just let it get on without having to much fuss and worry.
By late May, I had this

I'm sure there's a way to make these things more economically and with a bit more DIY than I have done, and so I'd encourage people to give it a try if building one is more your style, or if you know anyone who struggles a bit with the whole working-on-the-ground bit of gardening. So I'm posting the full picture so you can get a look at the thing, and maybe someone handy with a saw could give it a go for themselves.

I've currently got overwintering onions, chard, leeks, carrots, and overwintering broad beans and peas planted. I'm going to put in some leafy veg in the next two days, and the cover is still going strong after a year of me pretty much neglecting it.