I have no complaints about my Rebel. I would buy it again. I've never had a robot and have no interest in one. I like that I can leave my vac in all year long, if I want to, with no cord running across the deck. I do pull the Rebel out when guests use the pool, but It is easy to do because it is so light. I imagine a robot is quite a bit heavier.
My pool is very clean and so I don't use a leaf canister. I would if my pool was "leafier." But I can go two years without a filter clean (I don't generally, but I did once), so I kinda lucked out in that regard. Whoever landscaped my yard before I bought the house did a good job, pool-wise.
I couldn't get my vac and skimmer to work well together at the same time, not without cranking up the RPMs. I just couldn't get the three-way valve that controls both balanced right. So I put an actuator on that valve and with my VS pump and automation I can dial in the perfect RPM for each. I set that valve to 100% open on the skimmer side and about 70% open on the vac side, so that 30% suction still comes from the skimmer when the valve is in vac mode. I did that so the suction port or the vac never have 100% suction. An open suction port and a 3HP pump can eviscerate a person, so having the skimmer in the mix lessens the danger of that to some degree (similar to how dual drains do). I came up with that on my own, I have no idea if it will actually work as intended. So far no one has volunteered to test my theory!
Speaking of which, my Rebel (along with the skimmer at 30% suction) needs about 2200 RPM. I'm guessin' that would not be low speed on your two-speed pump. My pool only requires about 1.5 hours of vac per day, so if I had a two-speed I'd only need to run it on high for a short period of time each day. I see that you have an SWG, so you must need a decent amount of runtime each day. You might have to find a way to automate switching RPMs back and forth.
Do you know what your pump's RPM is on low?
@JoyfulNoise, what RPM does your vac need?