True, except for the significant latency and jitter in the packet flow from .11n - not anything the Stream board on the Bartok can’t handle, but I expect over the fullness of time, you will see inconsistent streaming experience and things not working properly occasionally. I had (actually I still have!) a Linksys WET54G .11g bridge that I used with a Printer years ago, it was very flaky, always going up and down. 
Make sense I guess, but maybe consider a .11ax (or ac) Mesh instead?
Maybe just one, try turning OFF LDPC - let TCP at layer 3 do it’s job of any necessary error-correction/retransmit, rather than the AP-Client having to negotiate the error handling at the PHY layer as well. 
Your English is fine 