Thanks for your feedback so far 
i haven't built a modern workbench, i was able to make one on a primative one
Hmm... yes it seems the primitive workbench is recognized as modern workbench... sorry about that, we will prepare a hotfix for that!
the only thing (unless iv missed it) is a close button on the menus, ( or an "X" at the top corner)
Yeah, that would be indeed quite handy... I'll put that on our to-do-list 
NPC Companions are a must
I agree, that would be a nice addition. Can't say much about them yet unfortunately, first we need to get the world gen and animals implemented, but then we can take a closer look at npcs 
- Planting trees gives me full grown trees (Saplings to mature trees instantly)
Unfortunately plant growth isn't implemenet yet, that's why it just spawns a fully grown tree 
Any specifics will have to be noted at a later time. For now, one of them has to be desiring inventory with it going to crafting instead. Frustrating.
Oh, actually the inventory and crafting menu use different buttons: The inventory is opened by pressing TAB (at least that's the default key binding), while the crafting menu can be opened by pressing E. You can, however, change these bindings in the settings.
- Primitive smelting furnace is a little bit too primitive. Burns fuel far too inefficiently, though probably intended for efficiency purposes and babysitting purposes.
Yeah, it's pretty much like the primitive furnace in the Java version
Better furnaces are in the works
- Scything grass splatters green grass even on brown areas. Grass is like a paint balloon.
It's indeed far from perfection, we will take a closer look at this!
- Forgot how to use the Menu wheel. Had to go into Settings to figure this out. (I miss the journal; F1 needs to be more visible. Forget when playing other games)
We will add a new journal in the future, we also have plans for a tutorial, but these features had a low priority till now (considering there are still so many core features missing in the new version) 
- Storage chest doesn't store stuff (probably intentional).
Yes, unfortuantely that's also not implemented yet 
- Any water container (Canteen/Waterskin) appears to have unlimited water (for now). Not a problem.
It's indeed a temporary solution until actual water is implemented^^
- Can't build below 290. Blockwise, just not placing items. A red X,Y,Z indicator popped up preventing me from building below that, unless it's with blocks.
Oh, could you elaborate on that? Does that mean you can't play any blocks or objects below Y 290?
Could you maybe share a screenshot of that indicator?
- Trying to build blocks of different type of the same texture bunches them up into the same primary block type. Stairs turns into the main square blocks of the same texture.
Hmm... that's not supposed to happen... I will check out what's going on there!
- May be a glitch, may be player error. I had two sets of ladders disappear on me when I was mining around. I heard an 'clunk', it disappeared so I had to make another pair of ladders.
This is also not supposed to happen, that seems to be a bug. As a workaround, you could "fix" this by disabling gravity for objects in the misc settings
If possible, can you allow us to have some food? A simple apple tree, or something cheaty, like the saplings spawning mature trees. I spawned in apples, for now. Whatever you can manage.
Food is planned, for now it probably makes sense to disable hunger/thirst in the misc settings. We will disable it by default with the next update (at least until food is implemented) 
- I wish these blocks would just naturally snap under, not parallel to. When you're dealing with stairs you need them to be fluid, like modular snapping with ladders. The game should automatically assume you're snapping the next layer down, at any grid or shape size.
Hmm... I'll put that on our list. Having a more specific handling for certain block shapes (like stairs) would be a nice thing, but it's a bit difficult to make sure it behaves correctly (due to the complexity of the building system). But I agree that having a better way for this would be quite helpful.