In 2017 the bowl spring broke on my old 1970's D7 (not sure of the model number, the big one).  Your website said the bowl that I needed was not manufactured after 2016.  So I threw away the working-perfectly base & blades.  My daughter purchased this new smaller one as a gift since I only prepare meals for 1 now instead of 6.  It's too many parts and the one part won't even separate for cleaning.  It's a nuisance to use.  The old one had several simple-to-change blades, one bowl, and one lid and one 'pusher'.  Easy!  Used it quite often. The new one sits on a shelf in the pantry, rarely used.  It seems to be more noisy, too.  Sure wish I had my old one back.  I bought a new Oster blender that I use more often now.  Not so many 'improvements'.  The quality of the machine is Cuisinart worthy.  Using 
it is the problem.  I guess the value is ok.