For only a few dollars more (especially right now, it's on sale!) I'd get the Fun Factory Bootie. It is a much higher quality product and will last you a long time. Pure, quality silicone is the way to go with a plug because it can be sanitized and is body-safe.
Bootie is the perfect size for a beginner, but even more advanced users love it. The base is easily one of the most secure and comfortable on the market, absolutely worth every penny!