When it comes to kitchen cabinet painting - degreasers are misleading
If you want paint to stick always scuff a finish and if you really want paint to stick, always sand a surface thoroughly everywhere, especially after a degreaser.
Degreaser products are misleading
In our opinion degreasers are useless when it comes to refinishing older kitchen cabinets. In fact, we would only say a de-greaser could work if kitchen cabinets have never been used and you don't care how long fresh paint will last.