I'm a big fan of Boss effects, but to me, the GT1000 was bland and too limiting.
Sort of knowing where you're coming from (or rather what you're shooting for), I can understand that. Yet, for most people (and for most typical sounds) the FX should be fine.
Fwiw, I totally agree on the delays, that's just downright stupid. Instead of 4 additional delays, they should've rather added 2 with more types and other options. Sure, you can do some stacked delays, but still, 2 additional delays would still be sufficient. Also, I sometimes rather like to have a second reverb. They could've done the master delay/verb as is (which is the Boss way to offer FX spillover, so that's quite something) and add 2 "spatial" blocks with an option to chose from various delay and reverb types. Or heck, maybe even just one block. As is, it looks as if they had some CPU juice left and didn't know what else to do instead of adding some super-low-CPU-overhead delays. Fwiw, personally, I'd rather even sacrifice one FX block to make processing room for more spatial stuff.
Yet, even if you never use any of the additional delays, I think for most "standard" situations, the FX portfolio is nice - and even if there's less of them, I usually prefer the stuff available through the FX blocks over the HX offerings.
The amp modelling was cack too, but there you go
Personally, I really like the Boss' way of amp modeling, both for the idea and for the sound (at least for the most parts). Yeah, there's some amp types lacking and you certainly won't get a room full of iconic amps at all - but then, that's absolutely up my alley, I never lusted for any kind of truly authentic sounds, just give me something that works well. And the Boss amps IMO absolutely do, fantastic dynamics (has always been like that, even back with the GT-5 and the otherwise quite questionable GT-10).
I do however perfectly understand how people don't like the Boss way of amp modeling. Well, no, I don't exactly understand it, but I kind of accept it - after reading tons and tons of whatever feature requests, you just know that you need to offer 1078467 amps and 92761 drive pedals to please the bedroom dwellers in order to stay in the business.
Where I think the HX series clearly wins is in terms of drive pedals. No way around it, the Line 6 offerings are just great (maybe the fuzzes aren't, never liked them much, even with all kinda different input impedance settings), but then, there's nothing decent from Boss, either. Not too relevant for me, though, as I will stick to analog drives on the big board.