This model - I have one which I bought during the Dakota days - has a bad design flaw, which is that you break the firing pin if the rifle is dry fired. Also, the underlever does not lock onto the trigger guard, as a Farquharson does, which means that when carried the lever is constantly 'unclicking' and opening the breech.
Before the ill-fated sale of Holland & Holland to Chanel, I recall that H&H were selling these rifles (from Dakota) with 'shot and regulated by Holland and Holland' engraved on the barrel.
With all due respect to Mr. Spomer, my own rifle is unsuited to the type of shooting I do (Africa and Scotland). There is nothing particularly wrong with the rifle, other than the issues identified above, but better alternatives exist. Probably the best is the Soroka rifle, but I am not sure whether they are still in business; otherwise it is the Rigby Farquharson (it ought properly to be the Rigby Banks, which had a side-lever rather than an under-lever) or Ruger No. 1.