The vika byske legs in the second build are adjustable 70-107 cm. The utby underframe in the first one appears to have feet that are adjustable at least a few cm.
I've used the IKEA adjustable legs and frankly, setting a single leg to a specific length is a pain. Setting four legs to a specific length would be a larger pain, and doing so without turning the table to its side larger still. Not ideal when you're looking to slightly tweak the height of a table.
