@SheenaWilton 

I have been using both Lightspeed (LS) and QBPOS with QBD for over 10 years.  You don't need to pay for Lightspeed Accounting unless you want the transfer to QBD to happen automatically or create a sales receipt in QBD.  You can export data to QBD manually.  That creates a daily journal entry for sales, COGS, payments, etc.  For some reason, they don't tell you about that feature.  LS has a free trial so you can see how it works. 

In dealing with their customer service on many occasions, I would say it's average to above average.  Compared to Intuit, it's spectacular.  The biggest downside to LS, IMO, is the reporting.  QBPOS reporting is great.  LS works well for most things but it can't roll-up reports like QBPOS can.  For example, you can't ignore attributes like size or color.  If you want to see how many particular jackets you sold, their report can only show you each size and color as separate lines on the report.  That created some extra work. 

I have never used RetailEdge but they look like a good option.