Re: You know what
> But from what I can see from the literature available, it's hard to know whether this release is a hit or a miss.
Honestly I think that's because a) this release isn't complete yet and b) the Reg seems to be gunning for MS recently (probably to please its idiot commentariat). Compare, for example, Andrew Orlowski's review on the Register to... well, practically anyone else's. Engadget's is a bit gushing but Peter Bright's on Ars Technica is far more sensible and reasoned (and still overall approving).
Win10 has rough edges at the moment (no pun intended). I've been asked by a few people whether they should upgrade and in every case (except for the developer and the syadmin who I gave a straight "yes, do it now, you need to learn this shit"), my advice has been "yes. But leave it until around Hallowe'en."
Because by then Edge should support AdBlock, NoScript and Ghostery, the dodgy bits should be sorted out and all necessary workarounds (for anything, we don't know yet) will be well documented. But if you don't need to upgrade, leave it until end of October/beginning of November. Patience will be of benefit to you.