First time developing c-41 and Portra 400! Went really smooth and is quite easy. Not sure why so many people recommend against it. I used the same 4x5 HP-Combiplan daylight tank I do for b&w. The Rollei Digibase kit mixed easily and is a really great value if you get the full capacity out of it before the working solution expires. I did add a couple wash cycles per the recommendations of many people in the big digibase kit thread on APUG. The manual with the kit only lists a pre-soak. Negatives are even and developed really well.
The Aero Ektar can render scenes in a unique way given its focal length, aperture, and working distance but I've yet to get a good one. A few out of focus ones might have looked good. A monopod might help too.
4x5 Portra 400
178mm Aero Ektar @f2.5