Can't see why it wouldn't install Ubuntu just fine but it would have
to be a very good price compared to other systems. Specification wise
it's nothing special really ( core i5 / 4Gb DDR3 / 1Tb HD / 64Mb Intel
graphics ) and what you are paying for is the touch screen and fancy
styling :-) Also worth noting that working on such systems is not as
easy as either a tower system or laptop plus upgrades are harder too
such as a better graphics card.

Thanks for your reply, the price is very good (cost) & I do not need anything
better then what it is for email/forums/simple spreadsheet etc. Am past fiddling
with computers, just want something that works.

The problem with ¨All - in - one PCs is that the replacement of
replaceable units is much more expensive than in a desktop PC with separate
monitor, since you are stuck with the same manufacturer (manufacturer
lock-in)
Example : Currently the graphics card in my desktop PC randomly stops
working and I have to re-start the PC.
Following arrival of a new graphics card (more up to date model at similar
price as exiting one) it will be simple to change the card.
A desktop PC + separate monitor might involve more space and cables but is
so more versatile.