Better choices but probably not less expensive, new that is. Guessing that you'll do fine IF you spend some time at the range before hitting the woods to see where you slug hits at various ranges.
I've messed with slug guns for over 50 years but no expert....most will get the job done, some better than others. My current is 20 ga H & R Ultra Slug with Nikon 3-9X Slughunter scope and 2.5# trigger..shoots 3" WW Partition Gold 260 gr sabot at 2000 fps.. like a rifle..best I've owned ..and Not For Sale,LOL.
Biggest advances in slug gun technology, IMHO, have been rifled barrels, sabots, better sight options..and wide availability of great slugs though can cost a few bucks to find the ones that shoot best in your shotgun.
Recoil at the bench still will get your attention but not in the the field..even if improperly mounted those purple, black and blue bruises usually go away in a week to ten(10) days.