Synology NAS | Upgrade from DSM 4.1 to 4.3 ???

Dear all,

I'm currently running LMS on a Syno NAS (DS213) with DSM 4.1.

Everything is fine so far and I haven't had any issues in regards to the interaction between the NAS and the Touch.

Ok...now I'm thinking about the upgrade to DSM4.3 but I'm also worried that I would facing some issues during/after the upgrade.

Are my concerns valid?
Or have some of you guys - who are running LMS on a Syno NAS - done the upgrade and everything still works like a charm?

Would really appreciate your feedback.
Thanks and Cheers.

Edit:
@ Moderator: in case this is not the right forum pls feel free to move it.
I wasn´t sure if the "3rd Party Hardware" forum is the better one.