Keep in mind that the following comments are based on seeing this short roughly one million times...
It's not one of my favorite silents of theirs -- anymore -- but it is a must-see if you've never seen it. There are several of their silents that I now enjoy much more, even after seeing each of them roughly one million times each.
For such a late silent, Stan is out-of-character here with his "Come on, personality" crack to Ollie. This is the type of dialog he later would be given in their Fox films. I know it is only a title card, but still...
I enjoy interactions between Stan and Ollie more so than when they are in cahoots battling someone else. The first, shorter part of this film has more of this type of humor. Once they arrive at Fin's house it is pretty much them against him. Don't get me wrong, it is very funny -- but after so many viewings I now get bored with it more so than many of their other silents which I like better.
Their other big "tit for tat" silent film, TWO TARS, also has them in cahoots, but I find more variety in that one since they are battling more than one person, at different times, and there are others battling others as well. So after many, many viewings, TWO TARS now holds my interest more, and I find it funnier. Also, the first part of TWO TARS is longer than the first part of BIG BUSINESS.
I almost envy the people who are just discovering L&H -- these shorts are all new to them, and they all seem fresh. The ones I tend to like best now are the ones with more variety, without them spending most of the 20 minutes on a just variations on basically a single gag. The single gag in most of BIG BUSINESS is the boys wrecking Fin's house, and then Fin wrecking their tree and then their car. And yes, the first time you see it, the variations are hilarious.
In the year 2024 this no longer applies, but in the past, this short suffered from over-exposure and over-familiarity, since it was excerpted frequently in silent film overviews, particularly in the best and most frequently seen Youngson compilation, WHEN COMEDY WAS KING. I'm talking about the 70s decade and prior ones.
Did it deserve that over-exposure -- of course! Again, from my personal viewpoint, its content becomes very repetitive after repeated viewings -- much like their talkie, ANOTHER FINE MESS.