I bought a pair of the Tangent Evo4 awhile back, when Crutchfield was selling them for (I think) $110 a pair.
They were ok... nice looking... but the treble was kinda sharp/"glassy." Despite the low price, I sent them back and kept the PSB Image B4 I had at the time, since they sounded much better to me.
I imagine the Evo5 would have more bass, but the tweeters are the same as far as I know... If that's the case, I'd pass on them... but others may like them.