Simple, elegant, and it works!
After a week of researching all the bluetooth car kit options; I decided to go with the simple approach. The HF-33W has a small foot print, simple design yet very functional(three buttons), and complements my car's interior nicely (07 MS3). After about month of use, I find the noise suppression/echo canceling technology works great and the 2watt speakers is sufficient at max volume with windows open or radio on. Also, no complaints from others during calls. So far it has paired automatically with my phone (LG vx9900 and Moto V710) %100 of the time in about 2 seconds. In addition it works great with turn by turn voice navigation via phone GPS feature. It automatically turns on/off/pairs with the cars ignition (depends on car model).