Sternone.
You were about to place an order for an Eclipse and now you are thinking of the D-Jet.
We have a phrase "out of the frying pan and into the fire".
That 'a side' heres just a few considerations for you;
The D-Jet looks nice, in fact I think it looks very nice.
Sit into the mockup at the next airshow. It is tiny inside. I was with a 5' 9" guy and he couldnt sit upright in the back! and that with the seat base virtually on the floor (thigh angle about 30 degrees up).
My main advise to anyone thinking of a VLJ is look very hard at the training requirements. Many I know, placed a deposit for an Eclipse with only general and vague guidelines on what hoops they would have to go through to fly the thing.
My secondary advise is only sign a contract for 'guaranteed performance figures' and I mean every last one of them not just a few ! (Go to a certified aircraft POH to see how many there actually are).
Operating a jet means that to get economical fuel burn figures - thus range -you will probably need to be FL330 (plus), and with the much faster commercial traffic on the same routes you may have horrific slots and delays.
Beech - well engineered aircraft but payload versus legs issue, and big chequebook required for non scheduled maintenance.