Resolve is getting better and better, but there are still some metadata fields that can be better such as original BWF filename, Also, if there is manual sync for correction or otherwise, I have not seen that timecode added to the ALE file. So a conform back to the original files will be difficult at best. I will be looking at the latest Resolve beta public release to see if there have been any improvements in that area.
When using Resolve for dailies, I do picture only and import/sync in Media Composer with more control over MI and ISO tracks and it get all the metadata for conform.
As far as groups, matchframe and such, is the proper REEL ID being extracted and passed along to the dailies? This will be in the TAPE column once in Media Composer.
Michael