i had them last year. They are good, but yes they are slow. They are soft, so depending on your height and weight. I decided to go with the k2 domain for a 100$ more cant go wrong as i have heard only good things about them.
Also the afterbangs chip quite badly so they look crappy after few sessions, only cosmetic chips tho.
you'll probably be fine then. people have mentioned already a couple negatives to them, but if you just need a cheap ski to mostly shred park with, theyll be fine. i mean, i still use some Line noodles from 2000 for park skis
They are not that much cheaper than the average park ski. Look online for last years gear OP, usually pretty cheap now. Look on evogear.com and levelninesports.com for example. Level nine has phil laroses for like $280.
2bi4 is lightyears ahead of 4bi9, whens the last you saw someone build a house using 4bi9s? -jfletcher