Well I recommend caution - Razer still stuck the 'HDK' label on it. I made the mistake of underestimating what that meant when I spent 349 EUR on the 1.4.
This is what I got - something initially incompatible with Steam VR, a dozen drivers from 3 places to hunt down and install in the right order, software that had loads of glitches, setup that took a full day (no diagnostics, no support, sparse community) and still never 100% worked. Headtracking was laggy, the compositor prone to crashing that necessitated reboots or even driver reinstalls. ED had long bouts of not working at all due to compositor missing part of the middle of what you're meant to see, textures failing to render so you could see planets from inside a space station, text that was hard to read due to pixellation etc. Not all Vive games worked due to no lighthouses.
But the worst is that you have absolutely no practical warranty or refund possibility - in Europe at least - after making you run a gauntlet of questions with customer support, Razer give you an RMA address in the USA. Using any courier with US customs services means you will get back a fraction of what you paid, so it's keep it or ebay it. Very sad because you place your order with a Razer Ireland subsidiary and the device gets shipped from Eindhoven. If I buy OSVR again it'll be a full consumer product from a company that treats customers fairly and when there is enough content.