Going from no limit to limit HOLD EM

[RedGladiator]

I play NLHE MTT STT CASH. I am considering learning LIMIT if it will significantly help my understanding in NOLIMIT.

I currently have very little experience playing limits, I do not enjoy playing limits as much and find it less fun.
Poker is a hobby ONLY for me.

I was told to spend 20% of my poker time playing limits. Is this good advice? In a recent interview in UK POKERCHANNEL Phil Laak said he wouldn't play LIMITS NOW if you paid him because he finds it so boring (he used to play in the past).

I was also told learning limits is ESSENTIAL to your poker education. (Source maybe unreliable)

SO my question is do you think it would be benifical to my NL PLAY to learn how to play LIMITS well?
If so, how important is this and what portion of time do you suggest dedicating to it.