To clarify, the original “Baby Q” was the Q100. It came with a one piece grid. It was replaced by the Q1000, which I believe comes with the split grids, which can be used with the optional griddle on one side. It also has a different footprint than the Q100 and a higher domed top lid. The Q1000 is available in a variety of colors and a couple of options as to the igniter, and one model has a thermometer. The original Q100 can be converted to use the split grids/griddle with support clips, assuming Weber still offers them. As far as the regulator and control knob, the Q100 (it was marketed as the Baby Q) and the newer Q1000 are the same. After 12 years, my Q100 is going strong, although I did convert it to low pressure in 2015 when we got our Escape. Because we bake brownies and cookies among other things in the Q, I added a thermometer to it many years ago. With a little practice, baking in it is not that difficult.
I transport it in a large tote in the back seat of the truck. With the cover on, any odors are contained. When it is in use, the tote can be overturned and used as a cover when set up for camping. I know several people who store their Weber Qs in tight spaces by pulling the two lid retaining pins and placing it inside storage compartments placing the grill in first and then the lid.
I do have a Blackstone at home. While I like the large surface area, I find I prefer the Weber when camping. But sitting beside the Blackstone I have the larger Weber Q2000. I would estimate that I use each equally, depending on what is being cooked.