I purchased two Bahco kits. Stripped the contents of one and found room for most of the contents in my MoskoMoto toolroll. Put all the "Bits" in a plastic container and stored them my tailbag. Keep the second kit in my garage for use when I don't want to break out my onboard tools.
Whenever I ride in groups, I tend to become "Sweep", as such have to carry enough tools to enable work on most makes of bikes.
It is wise to always use your onboard tools when you work on your bike at home....you will soon discover any shortfalls ....that way any other necessary tools can be added to your kit
After a period of time, you can start deleting unnecessary tools to lighten your load.
Bahco makes quality tools at a reasonable price. I have no hesitation in recommending them.