If you keep on doing what you've always done, you'll keep on getting what you've always got.
The original program has been around for years. The company behind it has grown over that time to include many options - and to re-brand the package. Here in NZ it became the standard by which others are compared. MYOB acquired CA-Systems - an accounting package commonly used by practitioners (we have personally used it since 1998). It's a very different program for a different audience - but it does mean that many accountants deal with the same firm - and the newer versions are designed to work with newer versions of MYOB's end-user package.
The client package has had new features added from time to time - although it has always used the traditional accounting program structure - such as rolling over to a new financial year and losing all of your history. However the latest versions are not only available to work over the Internet, but they've upgraded to a newer software platform - and taken advantage of the opportunity to update the way it works.
MYOB have also developed the Essentials package - a newer on-line (or cloud) only system. We actually use a special version of this which MYOB offer to accounting practices if they no longer wish to use BankLink. When MYOB bought BankLink they incorporated the BankLink feed into their other products. While the difference between say a 99.9% and a 99.99% accuracy rate might seem trivial, consider the effect over thousands of transactions.
With so many local firms using MYOB, support is widespread. Many places offer classes, and support people offer their services. If support people come from a technical background, they may not offer the depth of knowledge an accountant can offer, but there's always plenty to choose from.
For further information on MYOB, check out their web site, or talk with us.