I think Philece was a fine actress. I loved her as Renee on Days. She was especially good opposite Brenda Benet, who played her sister (later revealed to be her mother) Lee (Emily) Dumonde.
She was badly miscast as Donna, but that was during the period when NBC was casting big daytime starts from other networks in hopes of boosting the ratings. That's why we ended up with Larry Lau as Jamie, Taylor Miller as Sally, Denise Alexander as Mary McKinnon, and Chris Robinson as Jason Frame.
Philece may have only been 8 years younger than Anna Stuart, but she read even younger than that on screen. With her arrival, they started writing Donna as a sex kitten rather than as a vixen like Anna played her. Thus, Donna was declawed with Philece's arrival.
My big issue is that AW dropped the storyline they'd been hinting at for 9 months with Philece's arrival -- that Scott LaSalle was Donna's third baby, that Donna had given birth to triplets rather than twins.
Show had nicely been setting things up, dropping hints about Scott, including that Reginald and Marissa (an amnesiac Mary McKinnon) had adopted him and that he was the same age as Marley and Vickey.
The biggest clue came in Anna's final scene as Donna when Reginald showed her a photo just after giving birth. Donna had a breakdown seeing the photo and they carted her off to a mental institution, suddenly clutching three tiny pillows and saying they were her babies. Go to 15:00 in the video below to see Reginald showing her the photo and to 24:30 to see Donna clutching three pillows.
With Philece's arrival, they suddenly revealed the photo had been of John Hudson holding her twins, Marley and Vickey. Supposedly, Donna was scared of John Hudson.
Speculation is that Philece didn't look old enough to play the mother of Hank Cheyne (Scott) who was just two years younger. That's never stopped soaps before, but it apparently did this time.
The problem is this left turn in the story telling dropped a potentially great storyline. Likewise the potentially great character of Scott LaSalle was left in limbo with nothing to do and backburnered for the rest of his time in Bay City. That was a real shame since Hank Cheyne was so very sexy and easy on the eyes.
Meanwhile, the story of Donna being so scared of John Hudson was short lived and had no major impact on the storytelling.