I have used these strings, the Fenders and the Rotosound 88's tape wounds on my hollowbody.
Each has it's virtue though the Fenders, to my ears, had the least desirable tone (thin, almost tinny) and the most slick plastic feel. Much a matter of taste but I've had them on a fretless electric and a fretted ABG and I can't stand them.
The Rotosounds were higher tension and had a more "fundamental" tone. Less top end and faster decay. Not a bad thing, especially if you are looking to get an upright woody thump.
The LaBellas have a richer tone than the Fenders and more top end spin and clarity than the Rotos. As they age they lose some of that high end sound and sound a bit more upright.
As for price, well you get what you pay for. Shop around.
After trying them, there was no obvious difference in sound quality compared to Fender. Why buy expensive strings when there are cheaper options that have the same sound quality as expensive ones?
Also, the gauge of the B string is 0.135 and not 0.128.
Also, big thanks to juststrings.com for the quickness of the order.