There’s such a huge gulf between what might reasonably be expected of the UK and what Davies is offering that progress seems unlikely.
On NI the EU is insisting on some kind of physical checks at the border as it would be the EU border with the UK and the EU needs to be able to stop Britian flooding the EU with tarif free goods from the rest of the world (tarif free trade with the rest of the world was a reason for Brexit remember). The UK has so far refused this.
On the divorce payment the figures I’ve seen from the UK side, £20bn and £38bn, have both been denied and are far from the figures calculated and presented by the EU. The UK figures barely cover membership during the Art. 50 period and an eventual transition period, adding the part of EU debt attributable to the UK and pensions gives a figure of around 100bn euros. The EU needs a figure with parliamentary backing to work on, that’s when negotiations will start, and end if the figure is seen as rediculously low.
The DUP having a hold on the Tories means progress on NI is unlikely so I can’t see “negotiations” going far. Negotiations thus far can sumarised as:
Britain “we hear what you’re asking and we refuse point blank, go whistle”.
EU “OK, next meeting in two months then”.
and repeat at each meeting of Davies and Barnier.