Don't know much about the Pineapple but I have been owned by a Lanikai S-T for almost a year now.....no problems whatsoever......don't think you could go wrong with the Lanikai...good luck and welcome to the UU.
I have one. It's fantastic. Some of the intonation is pretty off, but it sounds fantastic. very durable as well. I stepped on it once, and nothing happened to it.
I know this is a little late. But I got the Lanikai Pineapple Uke as my first ukulele and its great! I got the same one for my girlfriend and sister and they both like it. I really like the pineapple shape and the price isn't bad. If its your first one, go for it.