[nabs-l] Seeking Advice on BrailleNote Apex Issue

[Miso Kwak]

Hello everyone,
I am looking for an advice on BrailleNote Apex cleaning.
My current device has been used about 2 years now. In the two years, I 
haven't had it get checked or cleaned. So far the software has been 
running without much noticeable problem.
Only a few potential problems that stand out to me are keys not being 
as smooth and inconsistency in Braille display in terms of how strong 
dots are. However, it is not to the point I am having a difficult time 
reading.
Since it is summer break, I do not need to use Apex as much as when I 
am in school, so I am considering to send it in for cleaning to 
Humanware.
If anyone is knowledgeable and/or have experienced similar situation, 
would you say that sending it in for cleaning and diagnostics can 
prevent future problems?
The worst case scenario for me is BrailleNote Apex suddenly having 
problems that hinder my full usage in the middle of a school year.
Again, I am just trying to see if sending it in for now when I don't 
have much significant problem with the device would be beneficial and 
preventive measure for future problems.
Thank you for your help in advance.
Best,
Miso  Kwak