I am a police K-9 handler and am taking my first vacation with my family for 6 days. I am leaving my dog with another K-9 handler. Do you have any concerns?

I have learned so much viewing your web site and that is why I am seeking advise about kenneling my dog while I am on vacation. I am a police K-9 handler and I have been a team with my partner for a year now. I am taking my first vacation with my family for six days and I am leaving my dog in the care of another police K-9 handler whom I work with and my dog as a lot of positive interaction with. He will be caring for my dog at his house because he will be able to monitor him frequently. The dog will be kenneled for long periods time and crated for very short period of time during inclement weather. He will feed my dog as directed and take my dog on daily walks just to get exercise. My question to you is, do you having concerns or advise for me or the other handler taking care of my dog? He will be taken out of his environment for those six days and I have concern that this may affect my dog's performance ability when returning to work or training. I maybe over concerned, but I am new at this and have never left him alone for more than a day. Any advise or recommendation would be greatly appreciated.

Thanks in advance,
Paul