Version 12 isn't much of a change from v11, so feel welcome to read those reviews also.
Sage gets a mixed response from users. Some find it perfect and others find it difficult to use. I can understand both these opinions.
I purchased SAGE Instant Accounts for my small business, despite the negative reports, because it was recommended by my Accountant and an indepedant website. On first installation I found the software to be a bit of a beast, that was not easy to use or self-explanatory. I entered loads of things incorrectly (using common sense, and not actually accounting proceedurs, and as you you can't delete anything (as all good accounting/bookeeping systems should not let you do), my accounts got in a mess. So, I de-installed, and searched the computer for all the "hidden" files, deleting them all. Then I re-installed the software.
This time I read the User Guide carefully, and now I'm the happiest person in the world! Sage Instant Accounts is a blessing! If you take the time to read the User Guide properly, everything is explained and therefore, your accounts are in perfect working order.
Now it's a pleasure to do my bookeeping - and my Balance Sheet actually balances.
Yes, Sage is cumbersome and anal - but that's the nature of Accounting, I'm afraid. Simple accounting proceedure only makes money for Mr Accountant. With Sage, I can take the time, do it properly, and Mr Accountant has no excuses for charging more than the basic price.
I recommend it - but you MUST read the manual, if you want to get the best out of it.