Can't comment on the Marlin 1894, but I do have a Winchester 1894 Trails End edition in .357 magnum, and I love it. I had a Springfield M1A as my main plinking / SHTF long gun, and I traded it in on a three gun deal that got me this Winchester '94. The M1A was expensive to feed mil-surp 7.62mm NATO, and it was a heavy gun to lug around. I already reload .38's & .357 magnums for the GP-100 and the S&W 686 I have, so the expense of the ammo isn't an issue with the '94.
Lever guns...(at least for me)...are more fun to shoot, and this '94 puts 158 grain RNFP bullets 100 yards down range with excellent accuracy using the stock iron sights.
A note about self defense and a rifle......
You are more likely to find yourself in an SD situation where a handgun will be your defensive firearm, than a long gun. The people you're most likely to engage in a fire fight will most likely be using a handgun. Should you be so lucky as to have a '94 lever gun in your hands at the time a fire fight breaks out, then you'll most likely have the advantage over your advesary who will likely have a 9mm Glock and be under the influence of either alcohol or narcotics.
Should this international terrorist problem grow to the point that the average Joe Citizen be called into State Militia duty, I would not feel out gunned standing gaurd over out shores armed with my Winchester '94, and a .357 magnum wheel gun on my bel, cause it's not how many bullets you can pack into a single gun, but how well you place the bullets your gun holds that really matters. Marksmanship is everything...!