Target Display Mode as a docking solution - What are the downsides?

Hi,
I have a work 13" air with T.B and a new personal imac 27" at home which also has T.B. I have found this great feature that allows you to put the air in target disk mode (hold down t whilst booting) and then boot the imac whilst holding down the option key and then select the air's disk to boot from. For me this works really well, I keep my work and personal machines seperate, I can use the same (imac's) keyboard and mouse without having to keep pairing via BT, the air gets more memory and cpu and as yet I have not noticed a lag accessing the air's SSD over thunderbolt. I appreciate I cannot run both at the same time but that is not an issue for me.
My question is can this solution if used upset / damage the OS if used frequenty 3-4 times per week? It seems a little too good to be true.
Thanks
Marc

There should be no problems as far as I can see if it works for the iMac with the drivers on the Air, the Air is just acting like an external boot drive... & yes, Target Mode is one of Apple's best ever idea.
May want to disable Software Uodates while running that way though.

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