Pretty hard to go wrong with this stove as it has been a pack light standard for a long time.
Pros:
Light weight
Multiple fuel bottle sizes
Works great
Heat times are fast
Pretty bullet proof
Cons:
More complicated than a canister stove
Stability on softer surfaces isn't very good
Overall this is my favorite of all the backpacking stoves I have trialed. If prefer to use a stove that is refillable, the whisperlite is a solid choice.