I bought a similar one via Amazon (10.50 per month, ends a few months after this one too).
It works fine. No fixed IP, it's CGNAT. Speeds not as high as Three, but around here EE's 4G is much better than Three, so it's an acceptable trade-off.
The 600GB FUP apparently isn't a hard limit, but it's annoying not to know the real limit or how many times we can pass the 600GB mark before having problems.
I don't know if EE considers these to be consumer or business plans as it's ScanCom that "adds" unlimited data to the SIM every month. It doesn't seem to be the traditional plan we get from EE.