I was looking at DB700, when it was released.
To me, DB is very closed case, which disqualified it completely.There is no ventilation on the top at all, front is also closed and I plan to install 2 rads. I was burnt on the original evolv atx and the temps. This evolv hasn't convinced me completely yet, but it should have better airflow than the previous versions.
I don't understand at all cases that say are built for silence. They are always warmer so you have to increase fan speeds to match cooler case otherwise you have got a cooker

and they are louder with higher fan speeds?
DB has worse built quality, screws instead of hinges on the side glass panels. Metal panels are not as good, as thick as evolv, they also leave lots of fingerprints, worse cable management (evolv now has also panels that can cover all cabling), RGB instead of DRGB which has more options, looks better to me on evolv and DB panel with RGB contacts can easily get damaged.
Fans are good in evolv as well if you need 140 fans, I don't so I bought Silent Wings already.
Not sure if all of this is worth to someone £60, to me it is (airflow is the most important in comparison to DB, it doesn't matter that much I guess for ppl who want to only have cpu air cooler/aio and case fans).