Despite the reviews on Amazon I have been extremely unimpressed with the Bose Soundlink Mini. The bass is a little much and to me makes listening to most music almost unbearable. This is my personal preference and find most Bose products sound this way. I will say that I love the size, feel, and construction of the device. Due to this I have made the mistake of buying multiple Bose products only to realize that their sound quality is extremely overrated.
If you are of the mindset that more bass = good then you you may enjoy the Bose.
Still can't make up my mind. The Beats comes with a case which is nice, but not a breaking point for the Bose. The Bose has the charging cradle, but can be charged without the cradle (one less thing to take for travel).