One of the biggest downsides to this game is the fact that to use magic you have to 'holster' your weapon, 'activate' your magic, and *then* you can cast spells.
Switching between the three spell(Fire, Frost, Lightning) is also slower and more cumbersome that it could've been.
And the inventory menu? It reminds me of K1s menu system, due to the fact that it can be time consuming to find one thing(weapon, equipment, consumable) if you collect a *lot* of stuff(like i tend to do).
Just thought i should mention that i've found a german forum that has a GREAT collection of maps for this games collectables.
Unfortunately there are a few maps that haven't been added yet.
Edit: Found what seems like a much better guide as it is in english, and it also seems far more complete than the german one.