I've been living with these speakers (I have two) for about 2 months at this point, and they're just okay. Yes, every time I have my friends over, they're amazed with how insanely loud they can get and love watching the cool lighting effects, but as an audiophile, I'm not impressed. There's no way to fine tune the sound. The app (that you must download in order to use bluetooth with the speaker) offers little help. There's a bass boosting option that comes as the default for the speakers out of the box, but without the "bass boost" the speakers sound shallow and bland. So basically, you have to keep their bass boosting option on. There's a few other presets they have in the app for different types of music, but they offer minimal help.
As I mentioned, I have two of these speakers, and I was more impressed with them when I only had one. When you connect another speaker to your original one using their party chain feature, it no longer allows you to connect the new speaker to you phone, which means that you can't control it from the app. The only way to control your second speaker is through the remote they give you. The only time this really becomes a problem is when you play around with the lighting features (which are pretty cool). There's only two different lighting presets on the remote, but within the app, there are many more. Another thing to note. The second speaker will occasionally go out of sync with the first one, which means you'll have to reset the party chain function and re connect them. Not hard, just annoying.
Now for the good:
They are incredibly loud. If you host parties in your home, even one of these speakers will light up your entire house with noise. Even while staying at a high volume, they still sound very nice. They also have built in lighting features that you can change within your app that can really enhance the mood that you are trying to convey.
Originally, I was very pleased with my purchase of my first speaker. For $350, it's a pretty nifty speaker that will definitely impress your friends. If I still had just one, I probably would've given this speaker 4 stars. However, if you're looking at buying more than one, you might want to look elsewhere. The functionality of more than one just causes too many problems for me to give both of them 4 stars. Luckily, I got both of these on sale for only $279 each. If I had spent $700 on them, I would be quite upset. But for around $550, I guess they're not too bad. Definitely a cool edition to your man cave. Would still recommend to a friend, but ONLY IF they're only buying one.