Personally i prefer glossy but i think that's just personal preference. I'm not 100% sure but i could imagine that dust sticks to a matte surface a little easier and a glossy frame would be easier to clean. Not sure though. My Velobuild VB 268 is pearl white glossy. You can check it out i posted it in the VB 268 thread.

Regarding my R088: I did another ride today. 30 km with around 500 m of elevation. I felt really comfortable climbing. When descending the bike was really fast. My brother rode next to me on my gravel bike almost spinning out and i was just rolling there comfortably. I think the 50 mm wheels play a part in that. The route contains a very rough segment. The strava segment is called "Höllenritt" which literally translates to hellride. It's a -7% descent over the worst road imaginable. Lots of potholes and cracks and overall damaged pavement. If your bike can handle that it can handle literally anything else. And i gotta say the bike handled it really well. The frame and especially the fork seems to absorb a good portion of the bumps. It still feels rough obviously as it's a roadbike but i never had the feeling of losing control over the bike. Really happy with the ride feel overall.

Also managed to take a picture with the bike in the sun, making the carbon layup really stand out:

My R088 is almost ready - took it out for a short test ride and it feels amazing

Weighs 7.2kgs

Size 56 chameleon green
Ultegra 8170 11-34t with 56/32 passquest chainring (Ultegra 160/140 rotors)
Ryet 3d printed carbon saddle
Lexon thin line integrated handlebar
Carbon speed D60CU-31 T1100 rims with 5.0mm carbon spokes
Pirelli p-zero tlr rs 32c tyres

Still need to sort out some headset play, bleed the brakes,  index gears properly and add handlebar tape, cages and install computer mount (and install rubber grommets in the di2 wire holes). Hopefully get this all done tonight to test ride to work tomorrow then make any final adjustments for a long first ride Saturday

Build was fairly smooth (was aware of the battery issue seat tube issue so was prepared with a long file) - routing cables was no problem. Tubeless set up was a lot easier than I was anticipating! (Buying a proper sealer injector so much easier than trying to mount the tyres after pouring in sealant)

Photo is quite dark so as it was late when i took it out so doesn’t do justice to the paint colour - my partner has taken absolutely zero interest in any of the conversations i have tried to have with her about the build, but when she saw the paintwork in the sunshine she was all “ooooh it’s an amazing colour, so sparky!”

Will get some better photos in the sunlight this weekend

Here is my D60CU-31 T1100 on my Spcycle r-088. They feel absolutely amazing - so quick - and even with the carbon spokes they are so comfortable thanks to the 32c tyres (which measure 32mm on the rims)

Cannot recommend xmcarbonspeed enough! Amazing products that are great value and Peter is so accommodating