According to hardware manual of that device there is empty 2.5" sata drive slot 7mm inside. So moreover that M.2 slot, where 256 gb SSD is. But to utilize that 2.5" drive slot one needs special spare part from HP, that costs 50 € or more.

Personally I think that it is not user friendly to equip such laptop with just 256 gb M.2 SSD, while we have 10+ megapixel smartphones, FHD-videos, many apps and else data. So 512gb SSD should be minimum, but device manufacturers tend to use older, expensive ans slow write specs SSDs and not those good TLC 500 SSDs that cost only 180 to 225 euros. So if only they would had put such bigger sata3 ssd in that laptop with that price, it would be much better.

Phillips screens are not so good, so that dark screen of them is unfortunate.