Well considering the rest of your speakers won't be able to keep up with the sub because you'll probably max out the settings on your amp...do you give a damn about the quality of your speakers? It's really a subjective question. There seems to be a lot of people ok with running everything through a string and coke cans so long as the subs give people headaches.
If you want a good install...it's going to take more than just a sub. Good clean bass requires decent mids. There's a lot of reasons for that but I won't get into a lesson here. If you want the most out of your sub that requires matching it with the mids in your current install. Mid range contour effects the bass line A LOT!!!
So instead of doing all the research or asking us to why not find a way to "test" the setup in your vehicle before doing a permanent install?
