I need to decide if I should invest my time into getting to 36 to get the hardcore vanity items.

Thus, I need to get a feeling on how good the vanity set bonuses will be.

Currently, only PL has vanity sets. I've only played about 3-4 hours of PL, so my feel for how strong a piece of equipment is isn't very good. Were those bonuses significant or slight (like weapon customization in SL)?

Please help.