Bottom line: The test versions are clunky because they aren't designed for manual appraiser input. Every software provider is working on scan to sketch and A.I. photo recognition to autofill the fields, the software companies will not iron out the clunkiness associated with manual inputs.
Truth is none of this is being developed for an indie field appraiser who measures a house with a disto/tape then walks through manually filling out the data points. The end versions of all of the software will be based on scans to sketch and photo recognition, while there may be an option to manually sketch and data fill it will be so tedious that anyone who tries will wish they were digging ditches for a living.
And from a horse's mouth, he isn't developing his UAD 3.6 software for "lifestyle" appraisers (skip to the 13:40 mark):