It's been about a year since I ordered from Jungle (SO-DO Build), but I think the main difference from Mandarake is that you can combine purchases from multiple stores into one shipment. From their Our Policies page:

If I buy items from different branches, how will you charge me for shipping? Will the items be shipped as one or multiple parcels?

Items ordered from different branches do not cost you extra fees; however, we hope our customers not to cancel the orders easily.
Each order will be counted as 1 shipment, if you wish to add more items, please kindly place another order and comment "combine".

I got two SO-DO cases from them back in April, and I honestly can't remember if they were from different branches or not. (The invoice doesn't specify.) It does look like, from this wording, they'll combine everything together if you order products that are at multiple locations. Worst case, if the shipping looks too egregious, you'll know I was wrong!

I think the other thing with Jungle is that there is an extra fee for international orders. Mandarake used to have that for orders under a certain amount but I think they removed that.

Maybe? Here's what my charges were for the two SODO cases back in April:

2 items total: Y8,250

5% handling charge: Y413
Shipping: EMS Y3,300

Grand Total: 11,963

(The EMS thing ended up being a huge mistake, since that's right around the time Japan Post stopped shipping internationally. The massive EMS backlog meant that a box shipped on April 18th in Japan didn't get to Chicago until May 29th.)

If it's the handling charge, it's only 5%. It'd be better to not have it, but I don't see it being a huge burden.

The main thing I'd caution about Jungle is that, on average, their prices are higher than Mandarake and AmiAmi. Nearly everything is just a bit more expensive, which is why I usually look at them third for stuff.

I placed an order at Jungle on May 30 2020 and they emailed me a few days later saying they could not ship due to Coronavirus. They offered to hold onto it until shipping resumed.

Then 3 months later in September, I messaged them to see if there were any other options (because the paypal window for disputes was about to close) and they offered DHL.

3 item total: Y14,300

5% handling charge: Y715
Shipping:DHL Y4,100

Grand Total: Y19,115

They are definitely on the higher side with prices but they sometimes carry stuff you can't get anywhere else. Meanwhile, their condition for a lot of stuff is very good, often seemingly new with just a few minor scratches or dents to the outer box.

I never tried Jungle but looking through their B listings to mainly just see the condition as various levels of "box damaged" makes me consider checking them more often.

Yeah, right now what's sticking out to me is that they actually seem to have stock in of SHF Orb Origin which Mandarake never do; and for a decent price at that. Also a cheap Tiga medal which I went ahead and bought

yea sometimes Jungle has more selection of stuff than ami and mandarake. I agree with Die in using Jungle third though. (Granted I haven't ordered from manda in quite a while )

But chances are if the former two don't have an item you're looking for, Jungle might. I will say though you should get a couple items in an order to spread the cost of DHL if that's your only option

Oh no, I live in the UK so air small packets are available to me

I'm personally trying to avoid amiami due to issues I and some of my good friends have had with them recently.

If someone orders from Mandarake to the US, please let me know how it goes. I'm definitely looking at those Ultraman Zs!

I've been ordering from Mandarake the past year and haven't missed beat or had an issue with items arriving...and gotten them within 3 days via DHL of course because that's what's only avaible to the states