Went from a JBL Flip 4 to this one. They are two speakers in (my opinion) the same league. Both are very good speakers with clear sound and good bass. In the end, I think it's more about a matter of taste. Some will think Flip 4 sounds better and others that SoundLink II is better. Personally, I slightly lean more towards SoundLink II as it provides a fuller and deeper bass. As said both are two really good speakers and you will probably be happy with both, but if they have a few extra hundreds to add then I would choose SoundLink Mini II.