Dunno about Draft It, but can recommend QCAD. Does more than I need for 2D and isn't too complicated.
The Pro and Community editions are in the same bundle. The licence covers Windows, Mac and Linux on several machines if wanted.
The free trial allows the Pro functions to be used in 15 minute slices. If the extra functions are needed Pro is switched on permanently by paying once, which got me 3 years upgrades as well. Otherwise trial-mode is switched off and although some commands and features disappear, it's essentially the same software.
I happily used the Community Edition for several years before paying for Pro. Though the Pro additions are all useful, my main reason was to get the Break Out Segment Tool. Saves a lot of time by deleting bits of line with a single click. The Community edition can do the same job, but it's more effort.
Dave