Viewed few units of the normal 2.5/3 storeys terrace few months back. I have to say that the 2.5 storeys have quite unusual design on the ground floor aka living room + dining room + kitchen.

The split level aside, the stairs and store room have different designs for different units. So if anyone is planning to purchase the 25 storeys, better to view few units for comparison (this of course excludes the "wear and tear" after these few years) purposes. If one has extra moolah, just go for the 3 storeys because the ground floor is much standardized, with no split levels if I'm not mistaken.

Just my 2 cents.