Forbidden Flavours is a local Brandon/Shilo chain and I love supporting them for that reason. The location on 18th is my favourite as the physical space is large enough to accommodate plenty of folks and there are some great comfortable chairs and couches. The staff never try to rush you out the door so you can really tuck into a book or work on some homework at this location - the free WiFi helps too! Coffee shops in a small town like Brandon are weird because it only takes a few loud/annoying folks to really ruin the experience and I find that a comfortable visit to Forbidden Flavours isn't guaranteed due to this. This is, of course, no fault of the establishment but it bothers me all the same.
According to their out-of-date website the 18th Street location once held a used book store which would have been pretty cool! They have the standard coffee items and a few speciality drinks - I usually order the green tea frappé which is always great. They also specialize in ice-cream (which I've never had) and have a few cakes and cookies on offer. I would avoid the bakery section as everything I've had has been stale, mushy/dried out, and just icky. The bagels are good so order that if you are hungry! I've never been able to have have a sandwich/panini from Forbidden Flavours as they do not offer vegetarian options.
Overall this is a nice, usually quiet, cafe that I love supporting because its locally owned!