The Uship nervousness is understandable, and I definitely had it as well! The carrier with a really low quote (Ct to Dallas just over $1k door to door) was rated 4.8 or 4.9 out of 5 with a ton of reviews and their own well-done website with additional company info. So, I had faith it wasn't a few guys with a few trucks. Another thing I've noticed with Uship is that Montway is usually within a $100 of the lowest (if not lowest). If that's the case, I suggest going ahead with them to limit nervousness. You will always be nervous until it gets to you, but less so.
Echoing Polarfire on the DAS terminal option. It's great and can save you hundreds of dollars overall depending on the distance from pick-up and delivery doors to the nearest DAS terminals. Seller can drive and drop-off or you can catch a ride to the terminal and they will bring it running right up to the exit gate. I live within 10 miles of their Dallas/Mesquite hub and think it was only $27 more for them to bring it to my house versus picking up. For that, I usually took the to-the-door option. If you have a willing seller, you can definitely save money if they drop off. In my experience, the sellers always seem to be located away from terminals, but I was lucky to be near the terminal. It's been awhile since I used DAS and hope their pricing went back down.
Good luck,