Should I reconcile transactions?

[Daniel]

Hello,

Should I reconcile transactions? I haven't reconciled any of my 
transactions because I might make a change later. I'm still learning 
GnuCash and sometimes I re-organize my accounts, or put transactions in 
different accounts.

What is the benefit of reconciling a transaction? Does reconciling mean 
that I can no longer edit the transaction?

Let me give an example. Yesterday I had the following expense accounts:
- Groceries
- Home & Office

Today I decided to replace those by:
- Living Expenses
- Work Expenses

Some of the transactions that went into "Home & Office" where moved to a 
different account. Would I have been able to do this if the transaction 
had been reconciled? My understanding is that this wouldn't have been 
possible.

I'd welcome any advice. I'm just trying to learn the optimal way to use 
GnuCash.

Cheers,
Daniel.