I love having a large base. You can have ice in it the whole session without all of it melting. It also is fun for making rather large concoctions of fruits and such in there. But i guess it uses more than a normal base so you might be wasting a bit. But ive also noticed that you can smoke more from one hookah without replacing the water. In my small egyptian, i can only go one session and then i replace it, otherwise you can taste the water in there. But with my large hookah, i can go two, or three sessions and the ghosting from the water is very minimal.
Also, it makes your hookah larger. A couple inches you mean a BIG difference