I switched to acrylics, when I found out that I was allergic to turps. You can use the same types of brushes that you use for oils, just don't use the ones that you have used for oils, because oil residue and the acrylic don't mix. You can also use watercolor brushes if you use the acrylics really wet.
Good brands of paint are Liquitex, Grumbacher, Golden, and Utrecht.
Acrylics are flatter than oils, even when you add a gloss medium to the paint. They dry faster, so blending is harder, and is done quite often by using translucent layers.
As far as is known, acrylics are as permanent as oils. Can't really tell because oils have been around for centuries, and acrylics are a new medium. Their big advantage is that they are more flexible than oils and won't crack as readily.
Hope this helps.