Of course you will miss part of the experience. That's what happens when you watch a watered-down version of something.
Dexter is easily one of the top 3 shows anywhere right now, maybe even #1 overall. Both seasons are 100% outstanding. If you are going to watch the show(and you should), you owe it to yourself to get the full experience. Every episode is easily available on torrents or elsewhere here on this lovely series of tubes we call the innernets.
Although, I will say this, hearing Doakes and Deb saying "mother lover" and "frick" would probably add a nice bit of humor. At least the first few times anyway. After that, I imagine it will just sorta sound sad.
Sometimes it takes a crazy person to see the truth. If so, I'm a freaking lunatic.