I bought this strap in 2011 to play bariton sax by occasion. Now, 7 years later, i play bariton more frequently and i am still using it. I even started using it for my tenor sax as i sometimes have have to play for several hours and this shoulder strap is more comfortable than a classic neck strap.
Once you've set the lenght right to match the size of your torso, you are good to go. Even if you switch between bariton & tenor. When switching between instruments you just need to adapt the middle slider, which is easily adjustable. The two side locks require a little bit getting used to, but i had this with other straps that i tested as well.
The lock used to grip your instrument is firm, it has never opened on its own accord and is easily opened when you want it to open.
The strap requires you to wear something below it with sleeves. If you are wearing something without sleeves or no top at all, the straps can irritate. Depending your performance outfit this can or can not be an issue... But in some occasions, this could be useful information!
Price/quality this strap unbeatable in my opinion. The only reason i would change straps, would be because of aesthetic reasons.