In terms of trading, I can pull off 720 cargo while still having a c6 shield and c3 fuel scoop with over 13.5ly jump range fully laden, basically pulling 3m per run and in a 4 man wing of cutters it gives about half a mil on trade dividends among everyone.
As for combat, the way I look at is, it has a smaller power distributer which is one of the reasons people hate it for combat but all that means is cut back on the amount of energy weapons you're using a bit and use some kinetic weapons in the mix to counterbalance that issue, next issue people hate is the turning ability, but in exchange for crap turning it has a bit less than 100 more boost speed over the conda AND corvet, a stock non upgraded cutter with E8 thrusters is faster than a maxed out a graded vette and conda, also the fact a cutter can never be mass locked by any ship in the game except another cutter which is really nice, it is also currently the only ship in the game that can reliable still do SOME combat with class 8 prismatic shields, the type 9 being the only other ship in the game that can mount those shields at that class, meaning the cutter has the strongest shields in the game.
As for mining and exploration, it has 64t fuel with a decent jump range so it's not the greatest but with that c8 slot for a fuel scoop and the default huge fuel tank I can see it good for honking, as for mining I hear mixed reviews on that.