Usual rapid delivery from Printerbase - printer arrived just after 7am the day after ordering.
This is quite a big printer but it's solidly built for the price. Speed as expected and I'm very pleased it doesn't have the issue I found with my old Lexmark when printing multiple duplex copies of the same document (significant pause between each copy) - they just rattle out of the HP as quick as it can print them (which is pretty fast even in duplex mode).
Colours are good and vibrant.
One thing to note is that the documentation for the installation of this printer is wrong - the link for driver downloads from the HP support website generates a 'page not found' error. You have to use the drivers for this printers big brother, the M553 series. Once I'd sorted that out installation was a doddle. There's also a dedicated HP app available from the Windows store (using Windows 10 I was pointed to this when the drivers were installed).
Finally, this printer comes with a full set of HP 'A' series toners, not the frequently seen part filled starter type ones you get with a lot of printers - one of the reasons I went for this model (I knew I wouldn't have to immediately buy a set of toners).