hh2 Remote Payroll - hands down. Syncs very well with Sage 300 CRE and Sage 100.

www.hh2.com

WorkMax has been interfacing with Sage 300 the longest and a few years back they  took the time to rewrite the software from scratch to accommodate a true cloud environment. I'm impressed with their ease of use. Users have the ability to use devices even when they do not have an internet connection. It will store the data and upload when the connection is reestablished. It also has "Clock Jumping" which allows users to clock in on one device and clock out on another. I would recommend looking at both these products. WorkMax also has it's own form designer so you and add to the default forms. (I don't work for them I'm just an Independent Consultant)  Home - WORKMAX

We use ExakTime. Syncs with Sage and very easy to use.  The hardest part is getting the field to use it.

We also use Exaktime....it is a big step up from our old manual time card system...our field employees have actually adjusted very well to using it.