I had an all in one compression sleeve for a short while and nearly went batty. I can count the times I have cried about cancer related issues on the fingers of one hand and still waggle a couple, but I once hurled the wretched thing across the room and howled! But I also learned a valuable lesson. Mainly and sensibly we mostly do what we are told with treatment. But occasionally it's worth saying something. When I told my excellent therapist how exasperating (awful to put on, pinched and bruised skin, actually causing swelling, having to virtually undress every time you wanted to wash your hands etc) she took me seriously. Close examination showed that the locally made sleeve (two repairs in the first 7 days!) was really badly fitted, too tight in places and with a bottle neck. Severely critical conversation with her supplier. My therapist then changed to a German brand with a detachable "hand", much more careful measurement (my skin is very soft so it's easy to get it wrong) and I have never looked back. Arm is good, I am good!
It's not hot, even in really warm weather when you need it most, wears really well and was actually cheaper than the local effort.