Check the state of the slipcovers; see if the slipcovers are already tattered or have already experienced a time warp of wear and tear. Well okay, the slipcovers may not be really significant because it can be easily replaced just in case; but there is nothing better of a deal than having everything nearly intact in one neat package. And besides, this can also help you save money in the long run.
Inspect the couch’s general structure. If you’ve previously had a couch that is generally small in structure, then a second hand couch of the same general structure would be the most recommended to buy. If your room’s theme is of modern design and your couch has a structural design of the same theme, then buying used furnitures of Victorian design wouldn’t be fit for such a room; so you have to choose with this insight in mind.
Finally, if you can get a resource of the furniture’s age, then choosing “young” furniture with some or all of the characteristics stated above may be the best way to purchase used furniture after all.