Congrats on the new bike. I took a look at the SL5 myself. I was very interested in a "comfort" bike since I already have a performance-oriented road bike (Fuji SL1 Pro).
I am also thinking about the Trek 520 which could my comfort bike and double as a touring bike or even a gravel bike.
I test rode the SL5 and found the steering a bit heavy. The sales person said it was due to the tires (32c), but I must admit it was very comfy. If I did buy it, I would want to keep fat tires on it. What do you think about the bike?