Howdy and welcome!
For a general purpose defensive concealment holster, it is really hard to beat a good leather IWB. It is very versatile in terms of the clothing options that it will allow you, and will provide the highest level of concealment. This is a serious consideration (concealment) because it allows you the element of suprise in a defensive situation. It can easily spell the difference between surviving and getting killed.
A lot of folks like the current generation of "plastic" holsters and some of them are pretty good. However, the purpose of a concealment holster is to act as the "interface" between a block of steel and your body. A quality leather holster will not only be molded to fit the weapon, but over time it will also soften up a bit and take the shape of your body. This will make it much more comfortable for long term wear. When it's comfortable, you'll tend to wear it. If it hurts you, you'll tend to leave it in your glove box.
Always remember rule #1 about gunfighting: Have a gun. Otherwise it's just a homicide, and you'll be the guy with a chalk line around you.
Please feel free to post any other questions that you might have, or call my shop 423.733.1779. Whether you decide to order a holster or not, part of what I do is help new guys learn the ropes. Most shooters have a "holster graveyard" stuck in a box in the back of their closet. Many guys have spent hundreds or even thousands of dollars on holsters trying stuff that does not work for them. If you call any of the makers here on this board, I'm sure that they will be happy to help you avoid some of the mistakes that newbies tend to make. Good luck!