Disclosure - I work for Leviosa Motor Shades, and am sharing this info from Ikea’s website for ‘Electric Blinds’, which, of course, can change anytime after this posting.
We could not see more than 1 fabric color to choose (gray) , in a few specific sizes, the largest being 48"W x 77"H. Leviosa offers 300+ fabrics, custom made exactly to your unique window measurements, and up to 192+ inches wide and high. Ikea’s rechargeable pack is likely fine for their small shades, but these packs naturally self-discharge, and Ikea FAQ state they will require recharging every 4-6 months whether the shades are operated or not. Unclear how long to charge each pack (hours?). Leviosa Motor Shades can be powered with batteries, plug-in wall adapter, or hardwired. Using batteries, Leviosa shades accommodate large D-cell size alkaline batteries that last for 3 years – much longer (7X) than other systems using AA or rechargeable batteries. The batteries are inexpensive, and available at most general stores. They hide behind the valance (no messy wires) and are easily accessible. We also did not see any valance offerings from Ikea - Leviosa offers valances in different sizes that are wrapped with matching fabric.
Net - Ikea offers a few value shade options for small windows. Leviosa offers custom shades with many fabric options for small and large windows. Both offer 5 year warranty.