The CS6100 is a very nice looking HTIB set that exceeds most "normal" HTIB sets, which is reflected by its somewhat higher sticker price.http://www.jbl.com/home/products/pro...at=HCS&ser=CNS
Depending on the size of your room and the demands you place on your system, it will perform admirably for HT duty. Despite its rated specs, you should expect that it won't give you much LF response below 40Hz as -6dB at 30Hz is an admission of swiftly falling off output. Nevertheless, its 10" subwoofer with 300W amp is a step up from most other HTIB sets that include 8" or 6.5" drivers with lesser power.
You'll get excellent bang-for-the-buck sound in the MF and HF from the drivers, especially the trademark JBL Ti laminate tweeters, and you'll get lots of powerful bass in the 40Hz and up frequencies. For virtually all HT duty, this will be impressive and probably more than your wife or GF (if you have one) will think is reasonable. Plus, she and her friends are very likely to approve of the looks of this stunning set.
If your room is bigger than 16x28, then you might want something with more output, but anything under that will be right in the sweet spot of this set's performance. For the price and performance, you'd have to look carefully to find a better bang-for-the-buck HT system, and frankly I don't know what it would be.