These guys are just easy to deal with. I recently bought a KickAss MPPT Solar Controller from them. Admittedly I haven’t used it yet, but if it’s anything like their other products I’ve bought over the years, I’m sure it will be fine. Postage to Sydney took 48hrs. I wanted to know whether I could hook up two different solar panels of different sizes and brands to the controller. I’ve seen on the internet that sometimes it’s not advisable to do this, and not wanting to fry my new controller, I submitted an enquiry through their website. Two hours later I had a reply. Awesome service.