Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Get the 310 instead. It is superior and far more versitile.

I'm with the other reviewer on this one. I'm not sure what advantages are offered by buying this router over the 310 model, except for a savings of about 15 bucks. The 310 is also compact but more powerful, and can be fitted with optional tilt and offset bases, whereas the 309 cannot. The base on the 309 is a smaller diameter than the 310, and thus is tall, skinny, and unstable. I'm really not sure why Porter Cable makes this router, as it seems an inferior redundancy to the 310. Don't buy cheese on your burgers for a month and spend the cash you save on a 310. Absolutely worth it.