The team at DB are very quick, responsive (especially with regard for their clients)and deliver! There's no need or desire from our end as we have been using them extensively since 2017 but I wouldn't hesitate if you're looking into this product space because they will be your best bet - trust me :) Their customer support has always delivered great feedback when needed too which helps us make informed decisions going forward so it really makes sense that way round! Nothing more than what was mentioned above would suffice here :).
We've used quite many freelancers before who took ages/costly amounts of time delivering work compared other companies doing similar jobs etc., however never felt like those were genuine enough until now where after some initial bumps along ways things seem ok thus far!!