We use opustime for our accounting and scheduling needs. It is easy to learn and understand. Our sales team uses it to track leads and appointments. For billing, we use opustime and paypal together. The scheduler is great! If you're looking for something simple, and cost effective, try opustime. We've used opustime since 2006. We switched over from Sage because they were charging too much money. I don't know if this was due to lack of knowledge or poor management, but we decided to go with opustime instead. We had been using a similar program called Open Office which has been discontinued (no longer supported). The only issue we ran into was the inability to integrate both programs at once. With opustime, everything works as one integrated product. The customer support team was helpful when setting things up and even after setup. They were patient and answered any questions that arose while trying to set things up. They also helped me through my initial confusion regarding the difference between a user account vs an admin account. In addition, they provide excellent training materials that help walk users through how things work. It's fairly priced compared to other software options that may seem more appealing, such as Quickbooks. When comparing them side-by-side, opustime comes off being cheaper than most others.