I've used this system in Minneapolis, which is almost identical to the costs and station density here. It's OK for certain people I suppose. If you are a local, it's better to bring your own bike. If you are visiting, the fees are very high since you have to start paying extras for a few minutes overage. Overages are easy to get because the stations are usually no where near where you are going unless you are doing short tourist jaunts. So you end up walking for 30 minutes to a bike, riding the bike for 15 minutes to a station roughly in the direction you are going, parking to avoid the fee, transferring to a new bike to continue, now you have to go further, then you get to closest destination station, park, walk 30 minutes to actual destination, and reverse to go home. Spend too long stuck at a red light and now you pay a fee for late. Want to ride somewhere, drop something off, then come back? To save on fees you have to factor in a bunch of stations and swaps, so a 40 minutes bike ride round trip if you had your OWN bike is now 90 minutes including all the walking to stations and swapping.

So just pay the fees. Or take the bus, which is cheaper and faster. Or rent a car and be done with all this.

The idea such inefficient systems are being taxpayer funded in some cities is offensive.

I agree with the other comment that it is quite difficult to navigate Boston traffic with a bike since the city is not built to accomodate it for the most part. Police are also highly aggressive, belligerant, uneducated, ignorant and thuggish and risk of being arrested and harassed for not being in the correct lane or whatever are significant.