[MattR]

If you are playing with rear sprockets to fine tune the final drive ratio, then you will benefit from having master links. You could even swap between 2 chains if the ratio forces you to add/remove a link.

For me, the biggest complaint about the master link is the clip tends to wear from the chain guide. After a while, you will need to flip the clip or eventually replace it because they wear down too much.

As far as strength goes, I have not had issues with the master links. One could argue that riveted chains are stronger, but the strength only needs to be as strong as the application requires. Since master links are not failing on my dirtbike, I never sought after the "stronger" rivet connection. I would rivet the chain on a street bike, but a master link on dirt bikes makes sense to me.