Smokeless does have a learning curve and i don't recommend it to a novice with no reloading experience. There are powders that make very reasonable pressures if you do your research and cost far less than BH209 per shot.

I have 3 SMLs total but i only prefer my NULA for hunting. My Savages are just a bit heavy for my tastes. One has a Pacnor 45cal barrel and its very fun to shoot at the range. 200gr bullets at 2600fps+ is extremely easy to achieve with several powders at less pressure than Savage "book" powders.

As far as accuracy, ive shot just as good of groups with my Knights and even a CVA Accura using BH209. The biggest advantage IMO is that you clean them when you feel like it unless you build or buy a custom SML. I wouldn't trade my NULA for any "production" grade SML or ML.