Twelve Spots: Tough but excellent Sudoku

Today's Video:

I thought this was two stars difficulty, I was swiftly, or based on the video length, extensively corrected.

Am I incorrect and this is easier than I thought?

Link to Play:

Twelve Spots by Marty Sears https://tinyurl.com/SudokuSleuthTwelveSpots

Rules:

Normal 6x6 sudoku rules apply.

Draw 6 lines, each with a different turquoise spot at both ends. Each line must occupy at least 3 cells, and may move orthogonally and diagonally. Lines may not branch, cross each other, or share cells.

Each line is a 'same difference' line. Every pair of adjacent cells along a line has the same difference - this is its 'difference value.'

Every line has a different 'difference value'.

Digits in a cage sum to the total in the corner.