also like the Penta a lot, and I bought a pair of IIIs this spring.
They are not perfect, though. My main problem is that they don't sound good in my livingroom, but that room IS a diffcult room acoustically. i have tried my Pentas in my bedroom, and they sounded great there so my problem is acoustics and placement-related.
I'm not saying the Penta is a bad speaker - I like the Penta a lot - but they are quite sensitive to placement and room acoustics, and more so than the other speakers I own. Another potential problem is that the treble is very directional. So why am I complaining in the celebration thread? Well, I just think that avery new Penta owner should be aware of these issues and be careful when placing the Pentas - it you place them right, they will sound much better! :-) Experiment with toe-in, distance to walls, etc etc - it's definitely worth it! It is a great speaker! Welcome to the Penta club! :-)