Thought I would chime in about my Turbo Vado 4.0 (2023 model, purchased just this January, new from the LBS, $2999 USD). I now have over 250 miles and 25,000' elevation gain on it. Still loving it. It continues to impress me with its stability, compliance, and comfort. It's often on a 1UP Super Duty bike rack on the back of our Class C RV. We designed and 3D printed some rubber (TPU) fillers that allow the rack arms to securely clamp down on the tires without deforming the alloy fenders.
When cross-shopping bikes, I was quite sure I'd go home with the SL model for its delightful light weight and sleeker looks. However, the SL's ride was too harsh for my needs, and the non-removable battery was a major downside for RV use where I'd want to charge the battery indoors and keep it out of the hot desert sun. So, the Turbo Vado 4.0 was the choice. In the end, I'm quite pleased. I remove the battery before loading it on the rack, which saves about 8 lbs.
Specialized needs to improve the battery release mechanism. As it is on my bike, there is no secondary latch, so you better be ready to catch the battery with your left hand as you pull the lever with your right, otherwise the battery could drop out and hit the ground. Initially we couldn't even get the battery to release at all, as the bottom screws holding the rubber gasket in were too tight, causing the gasket to bulge and prevent the battery from releasing.
The magnetic charger connector is fiddly and can pick up things like pebbles or keys. It only attaches in one orientation, which is not well marked. I'd rather just have USB-C. Imagine that... use any decent laptop power supply to charge your e-bike. Would they ever do it? Haha.
I added a Garmin Varia rear radar (custom 3D printed mount, of course), and a BASIL MIK-compatible trunk bag with fold out panniers.
All-in-all, it's a tremendous value and a capable bike for everything from fitness to errands. It looks nice to (especially in that metallic red).
Thanks to everyone who contributed to this thread as it helped me narrow my choices down.