Going way back in the day I built/installed lots of thumping car systems and Kenwood was always my favorite.
So I am leaning towards the 998.

How long have you had it?
Rode in the rain?
How careful are you when washing the bike?
Have you had to park in the rain since installing it?
Can the display be seen on a sunny day?

Do you ever think maybe you should have bought a different unit? If so what and why?

 

I've had a Kenwood 798 (two seasons) and now a 998, both had zero issues. I have a road glide and just drilled a hole in my glove box and ran the usb from the back up into it, plug my phone in, throw it in the glove box and stream spotify 100% of the time, works great. Retro Radio lets me skip songs or go back from the handlebars on spotify, so life is good.

 

The unit (KDC X998) has an option to invert the display to a negative field
Works very well in daylight
YMMV tho

 

No kidding? I can't see mine for the life of me on my road glide, bad angle, may have to actually read a manual and find out how to switch it.

 

Yea the road glide angle is different from a Batwing . Im betting that has a lot to do with it

But set the color on almost a white lettering and then invert it.