It has good features like auto-billing, automatic invoicing etc., which makes it easy to use even by non technical people as well! The support team also provides quick response time when any issue arises with their product or service - they are always there ready at your help whenever needed!! I have used many products from various vendors but none compares its ease & convenience level compared to trademax billings system.
Nothing much specifically about trading max itself except price point (which i think could be little higher). But overall experience was great because we had nothing majorly wrong regarding our transaction process using Trading Max Billing System so far :) Great customer care services provided over phone/ email / chat too!