I'm a bit of a newbie - been out in Pacifica, Ca 3-4 times now, and am really enjoying myself


I bought the cheapest board I could find ($100!), and have been able to find out very little about it. I was hoping someone on this forum might know something about it, and could tell me:
1. How long will it be useful to me? (in terms of skill level, rather than time!)
2. What will it stop me from being able to do (as opposed to, say, a pop-out or a custom board)?
The board is a 9' soft board with a spongy, porous-appearing light blue top-surface and a shinier spongy white bottom surface. On the top, there is an oval logo and the words "Shredder 9.0". At the tail is a sticker that says "Made in Brazil".
From googling it, I found this website, which seems to be the only one that sells them:
http://www.mikedoylecustomsurfboards.co ... Surfboards
I know there is a brand called "Liquid Shredder" which seems to get favourable reviews as a beginner board, but I think this is a different board?
Thanks for your help,
Lee