I started on my Nixie clock building spree about a year ago. I have tried several different kits, from home brewed boards to Ardruino based clocks. What I can tell you is this is hands down the very best Nixie clock kit out there. The features that are available are outstanding. The kit is very easy to assemble using the very detailed instructions available here on the website.
If you are looking for a kit and want the very best, get this kit and you will be rewarded with a clock that is unique and dead reliable.
...Semper Fidelis...