We cycled the Lana in 2019. As @roving_rufus
says, the difference from the CF is restricted choice. Where we stayed in municipal, religious or Amigo-run accommodation the price was free (eg the matodors' rooms in Trillo), affordable or donativo.
In a couple of places, the only alternatives were hotels or Casa Rurales, which offered pilgrim rates but were a little more expensive than private albergues may have been.
However, food and drinks were typically a little cheaper than the CF, and cafes much further apart, so on balance we spent a similar daily budget to our CF bike-pilgrimage.
It is a very different adventure to the CF and if you are comfortable with your own company while walking and Spanish-dominated conversation in the evenings then the scenery and the welcomes are second to none. Summer heat must be difficult, with long gaps between safe water sources. But at any other time I would thoroughly recommend.
Buen Camino y Viva La Ruta de Lana!