I started with a rock chucker and I still use it for random jobs. I mostly use the 650 or the BFR and the rock chucker to resize bullets, pull bullets, swage primer pockets on .50 brass, etc. The Forster won't do that.
650 loads great ammo, and I disagree, it's always gonna be faster if you can prime, seat and crimp while throwing a load. And it's about as good as the dies are really. The Forster dies really help and I swear by those. I mostly use the mic seating die and their sizing die. 650 will also throw very accurate out of it's powder dispenser. Probably the best one out there. As long as it's fine grain it'll throw +/- .1gr. --that's the tolerance of my scale.
I'd get the Forster if you need to and plan on loading very accurate ammo in low counts. Like 100 of this for this match, or 50 of that for a hunting trip. For quantity, Dillon is the only way to go. And if you move up to Dillon stuff later, you may still find you need a cheap rock chucker. In that case, go to a gunshow and look for the old timers selling all the old reloading gear (some of the stuff is very high quality, no longer made, true gems, but plenty of cheap 1 stage presses).
As far as just getting a single stage press goes, not sure if the coax has any peers. Still, I'd compare it to say, the RCBS Ammomaster. I know that one is a beast that can accept 7/8" dies as well as 1.5" (or however big those are). It has enough power to size a BMG case so it'll make sizing anything else just a breeze. 3 heavy bolts holds it together, same with my BFR. Solid as a rock. Anyway, that's one press I'd compare it with for sure if I was in the market and looking at 'em. Not sure but the Ammomaster may also have a turret accessory also for smaller cases? Worth a look.
There's this German press mfg. that's been mentioned on here a couple of times and they make some very nice stuff as well. Maybe check them out too if possible. They look very well made, better than US made stuff for sure.
Good luck!