I've looked at quite a few takeoff packages, but settled on PlanSwift for a) value for money, b) compatibility with Excel. I provide takeoffs for contractors across many trades, and for main contractors, and all have been impressed with he accuracy and the marked up drawings showing what's been measured enables them to easily identify variations. As I have many clients operating with different internal management software the fact that PlanSwift is so compatible with Excel means I can provide schedules in whatever format works best for them. From my own perspective, I can measure jobs in a few hours that would have taken me 2-3 days using the old school scale rule and takeoff sheets. Productivity has increased dramatically, I have virtually zero paperwork cluttering my desk where in past I would have stacks of drawings and specs. I have had a few problems in my time using it, but the customer service department has been brilliant. Being in very different timezone has it's drawbacks, but if I email them my issue at the end of the day I will have a reply in my inbox the next morning.