I've used Hobbytron because I needed a very basic HL PzIV for a build with lots of scratch-build and aftermarket upgrades. They ship quickly and have online coupon codes. However, as Erik said, they don't know much about the products and don't have any upgrades they could help you with. They're basically a warehouse moving stuff (from my online perspective). If you want help buying your first tank, go with the vendors Erik recommended.