Vanguard balances do not match Quicken balances. As an example, Quicken shows a money market account with $45000+ balance while the Vanguard money market balance is little more than $1100.
With 8 Vanguard brokerage accounts with multiple funds in each, I have no desire to continuously manually update share balances and prices.
I can download (to a test file) and values are correct.
Overall, the total Vanguard balance is off in Quicken by about 3%.
[Edited - Readability]