I believe you have gotten a few answers from this thread about the value of your home in Terra Linda.
As far as whether you should rent your property out; in addition to the market condition, it also depends on your goal, both short term and long term.
Why are you thinking of renting or selling the home? Is it because you are in the process of buying another home? If so, where? Do you need the proceed to buy a home? If you rent, is your goal to sell eventually - will that be short term or long term rental? How long do you think you can sustain that? Will you be local so you can take care of the property or do you need a property management company to help you?
The reason why I ask this is so I can understand how you evaluate the sale vs rent situation. That has a lot to do with what you should do - other than just the price.
Even with rental, we will also need to know your specific location and condition of your unit before we can give you advise.
The ones I am seeing is around $2,000+/-; but without seeing it, it's just a range.
Furnished or not can be looked at both ways - some people comes with furniture, some not. Kind of like a house with swimming pool - all depends...
I am in Marin and very familiar with Terra Linda / San Rafael market. Let me know if I can help you.
Frank Howard Allen Realtors