Welcome!
The "B-Brand" (Bachmann snap track) is really intended for a train set type of use. Can it be used for a permanent layout? Yes, but as Philip already said, you're likely to run into problems in the long run. LifeLike makes the same type of product.
Kato makes a similar product, but with a much higher quality. The price is higher too.
Most people will go with conventional track products from Atlas, Peco, or Micro-Engineering (ME) for permanent layouts. Atlas track (Both code 80 & 55) will be the easiest to find and have the widest selection of accessories. In fact, if you go to the Atlas website (http://www.atlasrr.com/), you can download (for free) their ‘Right Track Software' which can help you plan a layout using their product templates. In fact, you can use it to plan and don't have to use their products to build it.
It's very important for you to do your homework now and plan carefully. The more you learn before you start, the less chance you will find yourself in frustrating situations down the road. Ask as many questions as you have, and don't be afraid to use the search function to see if your question(s) have been asked/answered here before. Sometimes you will find good answers and ideas that may not get repeated if you ask them again today.
Its been about 30 yrs since I played with a train track. Last year we bought our boys a couple of N scle kits with the -B- brand snap track stuff. The question is, has anybody done a decent layout with this stuff or should I be buying flex track and building something from scratch like the local guys. I've got tons more questions but I'll ask them in other posted mesaged. Thanks in advance.
Jeff