While I have used Blender before it has been a while (Back in the days of version 2.3 I believe). Back then I only had a computer powerful enough to do the simplest Tutorials ( anything more complicated slowed the system to a crawl or crashed it) so coming back to these tutorials is familiar territory!
Alas I forgot initially that Blender has an interface that relies a lot more on keyboard shortcuts, a callback to how 3D software used to look up till a few years ago. Compared with the newer Maya interface it can look a bit daunting. Though once you note the keys down its certainly easier to use than Maya in some cases still.
Initially I forgot Blender doesn't actually default to front view so I initially modelled the house on it's side! I Redid it after that little faux pas
With objects it's important to use Ctrl when moving to make shapes match I find, also Ctrl-Z undoes any mistakes (and pressing escape when editing an object cancels the action). Good shortcuts to know in case something goes wrong ( shame Blenders undo function isn't exactly clearly marked out anywhere)
The castle came together much easier, I duplicated the square to a 3x3 size, added 4 towers and made one roof and duplicated the other 3. I also added 3 lamps to improve the lighting in the render as well as moving the camera.
Incidentally F3 saves a JPEG shot of the render which the tutorial doesn't mention. Neat eh?
So far so good, now to move onto the next tutorials!