I sort of agree with the previous posts, to a point, but for a slightly different reason.
I agree that fitting them is not the easiest and there is no demo, not good things.
I believe you can get better on the market without getting a mesh body though if you don't want to. I purchased Cherry Bombs and have been thrilled with them. They don't go up to outlandish proportions the way Lolas can (although past a certain point Lolas won't fit your body either), but they go plenty big enough. The best part is the addons, primarily the lactation addon.
I believe a lot of mesh bodies will actually allow you to add your own breasts anyway.
You should check them out regardless. I was like you, looking around, and in hindsight wasted the money on the Lolas when I could have gone straight to Cherry Bombs.