Anybody using Casio Arrangers these days?

I have not. What is the latest Casio Arranger?

https://www.casio.com/products/electronic-musical-instruments/workstation-keyboards/wk-7600

User Reviews:
https://www.musiciansfriend.com/keyboards-midi/casio-wk-7600-76-key-portable-keyboard#reviews

The latest offerings in the Casio arranger line are the CT-X models. There are currently four models in the line. They are all 61 key models, and tout a much improved sound engine. They are apparently to replace the upper end CTK (61 key) and WK (76 key) models, while the lower priced CTK/WK models, with the old sound engine and typical features, will continue to be marketed as usual.

The CT-X models have the AiX sound chip which is Casio's latest and has received high acclaim. However the slightly older MZ-X500 which has now been discontinued, has a more complete feature set and a touch screen which makes things a LOT easier. It was intended to compete with boards from the "big 3" in the $1000 price range but there were few takers.

It's ok the biggest letdown is the keybed. If Casio had spent a few more bucks on a better keybed and used introductory pricing (say $799) it might have gained traction. My $.02.

Pretty good reviews for that $500 keyboard

Yea, the X500 looks interesting, but I'm not sure I would shell out $1000 for a Casio, especially with a lame keybed

The WK-7600 is a big step down in sound quality from the CT-X5000, and a big step down in functionality from the MZ-X500. It doesn't have Sync Stop, nor arranger "memory"- i.e., there is no way to stop the sound when you lift your hands from the keys. That's a deal breaker for me!

The MZ-X500 should have had a better keybed. If it had a more complete MIDI implementation (which could theoretically still be added via OS update) it could have at least functioned as a module. But Casio is done with it and has moved on. Most of its functionality was inherited by the CT-X5000. The problem there is with that tiny LCD screen it's much harder to use. Better sound but same lousy keybed. At least the price is lower.

I've seen this in other industries. If you want to make inroads against established players you have to price aggressively, maybe even sell at a loss for a little while to build interest and a user base. When the MZ-X debuted, none of the retailers were interested in stocking a $1000+ Casio. A few brave souls mail-ordered it. I have a feeling that there are some still sitting in warehouses; sooner or later they'll be blown out. If you're curious about a TOTL Casio arranger, keep your eyes open for deals!

They have a few nice features still toys and not for a pro player, but I guess pretty good for someone starting out at a budget.

I notice that Casio is rather good at building relationships with some stores which sell electronics in general but are not focused on musical instruments. In some cases a store can offer 10 or more models of Casio and just 2 or 3 Yamaha’s.

Perhaps Casio knows that “being your first keyboard” is the best strategy for them. Yamaha competes with Casio rather well, but in the same time Yamaha doesn’t want to make their entry-level models too good as they also produce more expensive products.

Casio attempted to compete with more professional instruments, but it looks like this segment is a risky one even for a monopolist. Today, for a $1000/€1000 you can buy some very cool gadgets; so a manufacturer really has to offer something unique to justify the cost. Yamaha had to offer practically everything they had with MODX, because computer-based instruments offered even more.

As I’ve been saying, today’s keyboards have to lose half their weight, half their size and half their price in order not to be obsolete. Take, for example, Roland Go:Piano, put PSR-SX900 brains into a smartphone, then put this smartphone into Go:Piano and there you go. That would be a revolution. Sadly, we see today what a cost of any revolution can be.