I totally agree with Anna, I love my Bamix, it's well-built and powerful and essential in my kitchen. especially for soups and dressings.
It would be nice to detach the bottom so it could go in the d/w but, again, it's not too big a deal. It's possible the detachability would affect the overall strength of the blender.
Mine came with three tips...one for chopping, one for whipping and one for blending.
I use the first two but mostly just the chopping blade.
You may want to take a look at the Kitchen Aid model, it does have the detachable bottom and was top rated by CI though now it's been surpassed by a Braun. I don't believe they included Bamix in their tests.