I have had my S7 for almost 3 weeks, and also am very happy with the experience. The only very minor annoyance is that the fingerprint sensor rarely detects my thumbprint on the first click (which is strange because my erstwhile Xiaomi Redmi Note 3's sensor was lightyears better at a third of the price).
Cameras on the S7 are amazing; I love the Exynos processor's speed and the 4 GB of RAM. Wireless charging is great; especially with the Samsung charger case. I love having a large chunk of my music collection on an SD card in the phone. I feel much safer with a basically waterproof phone, and the battery life has been good.
Overall, it seems like Samsung took all of the best features of the S5 (waterproofing & SD Card) and all of the best design of the S6, and then improved them.