Hey there!
Thanks for the video.
One thing you should know - the gameplay in the video looked a little sluggish compared to what is intended; I have a feeling your machine is one of the ones that dislikes resolution changes, which is patched in the current version. Try it out and it should run significantly faster for you.
EDIT: Also, you may consider trying again on Standard mode, that's what is intended for pretty much everyone until you gain the experience to play on Hardcore. Hardcore is borderline masochistic ;)
Save functionality is another thing that is in the list of planned features.