I've been shopping (and taking a serious hit to my life savings) since a good friend introduced me to them a few months after opening.
It's safe to say that this the best men's store in Madison and one of the top in the country. All the gents who work there know their products inside and out and are so helpful.
I typically grab a pair or two of jeans and a couple shirts every year and I've never gone wrong. Sure, it's expensive but everything they sell very high quality and will last a long time if you take care of it. The selection is well thought out, beautifully displayed and they don't sell any "weak" brands.
Their website is slick and offers some good sales a few times a year to ease the pain of buying a $200 pair of jeans. Even if you don't buy anything, it's absolutely worth a trip to the store (or website).