Dalman is a scale trading company based in the UK.  Dalman is a small (probably a handful of employees) trading company that is run almost solely by a very nice father and son team.

The scale you are asking about is just a standard Chinese model that was not designed or produced by Dalman.  Basically, what you are asking is if that scale is good, I can't answer that because it's mass produced in China for perhaps 10 or more other companies without onsite supervision by the importer.  If you find it online in any other brand it's likely the same model made in the same factory. 

Good Luck and please post your results on the forum.