As an installer, I've worked with many bose products over the years. I liked their old 901 consumer speakers, and their noise cancelling headphones work well too. However, bose also puts out lots of product that is total crap, such as their entire home entertainment line, their clock radios, and others.
I've heard the L1 sticks in a variety of settings, with different program material, and I haven't been very impressed. They are about enough for a small jazz band in a decent room with 150 peeps, in my opinion. They would probably be great for a classroom setting, or on corporate stuff that was vox only. Every time I've seen them in larger settings with a band, they were being pushed, and you could hear it.
The main reason I dislike bose, however, is for their habit of using totally proprietary connectors and setups for their consumer gear. Anyone who has had to integrate these systems into a larger audio setup knows what crap they are. From my look at the L1s, it would appear bose is still following that model. And while I have used some bose gear that works well, it's in the minority, and that gear was never a part of the pro audio market.
Spend your money on some real speaker boxes and amps--there are plenty of excellent combos that simply smoke the L1s for less money.