This is a was a pretty good deal on a Voron v2.4, which is on sale at AliExpress right now. I say it "was" a pretty good deal because it looks like the Pi they had offered originally is no longer offered. The listing text shows that the Pi is not included now - even though the picture in the listing still shows it. Without a Pi, it is still a reasonably good deal for a 350mm Voron R2.4 kit in my opinion. When I ordered mine for about the same price a couple months ago, I ordered it with the knowledge I may not get a Pi with it, even though it was in the BOM for the kit at the time. In other words, if you order one I suggest checking with the seller to find out of they have any of the Pi's left, and if one will be included in your kit.
I'm still building my FYSETC 2.4 R1.3 kit, and so far have been happy with it. The printer in the listing also appears to be a R1.3 (not the latest R2). I do not really consider that a big deal though, since the R1.3 can be built as a R2, which is what I am doing. The main difference seems to be swapping two of the MGN9 rails on the X, with one 400mm MGN12 rail (I paid about $16 for one of these rails). The other differences between the R2 and R1.3 seems modest in cost though, most changes seem to be related to the printed parts.
I posted a parts inventory for my FYSETC V2.4 R1.3 kit here (which I bought a couple months ago from the same seller). In the link you will find some of the pro's and con's of the kit I received along with pics of the parts I received. The biggest con I found with the FYSETC kit is the non-standard hole sizing on the bed (which is not a functional problem, but also not the spec). There are certainly better kits out there, but this seems like a decent budget kit, and I don't think I could source it for less. It was certainly a better deal with the Pi, but it's not a bad deal without it now.
The link is not a referral, so I'm not making anything off this. I just wanted to share the deal. It is possible that the prices could change, and if you are setting up an account for the first time they may offer additional coupons. Also be sure to check that the listing still includes the Pi if you decide to jump on this (in case they remove the Pi from the listing later - edit it looks like they did pull the Pi from the listing description).
I checked to see if some of the coupon codes on the listing page would work with this deal, and even though they were on the same page as the Voron, they did not apply (those were "US15" and "US40"). It would be worth trying those coupons anyway at checkout, just in case they apply in your case though.
FYSETC also have great prices right now on other Voron printers.
Update: I edited this post since I was originally thinking this was an V2.4 R2. But after looking at the pics, I think it is the same kit I bought, which is an V2.4 R1.3.
Update 2: I found this FYSETC carbon fiber X-axis "tube" which replaces the stock aluminum X-Axis extrusion on the Voron 2.4 350mm design (only for the 350mm size printer). The price was only $16.53 after the discounts which is a heck of a deak for one of these, so I picked one up (I have not yet started on the X-Axis so it should be a drop in replacement for the extrusion).
Update 3 (PLEASE READ): The listing says "Please note :the kit no including the raspberry pie motherboard, thank you" (but the listing Pic still shows the Pi3B+ as a "free gift"). Thanks to Gymoniphon at Reddit for pointing that out. If ordering this or planning to, I suggest contacting the seller to clarify what is included if you order this kit.