Let me begin by saying my housemate received a suit that fit perfectly. My housemate also doesn't have much in the way of curves.
I'm not exactly a big girl - usually around a size 8-10 - but I am a bit curvy with a booty. I provided all my measurements - my waist and hip measurement has a 28 cm difference, and my bust and waist measurement has a 25 cm difference. How did Sumissura interpret all this? That my measurements were wrong, and I was obviously round and short. They have no concept of an hourglass figure.
The hip measurement of the pants was loose so I could hold it out like a weightless commercial, but clung so tightly to my waist I couldn't even sit down. The crotch was a good 10cm too low. The pant legs tapered ridiculously to the ankle point, and were several inches shorter than my measurements.
The jacket was no better. The arms were several inches too short. There was no waist - it was a shapeless tent, but so tight around my shoulders for some reason, I couldn't move my arms forward.
I wrote to them to fix the suit, resending my measurements and taking several photos with the problem areas circled and highlighted.
The replacement jacket came back... Okay. Not a great fit, but I could move my arms. They seem to still be confused that my bust is bigger than my waist, so it's a more straight-line sack now, rather than one that tapers out in a clown-like fashion.
The pants are still awful. The waist is more fitting, but it's still too tight around the hip to sit down, and again with those awful tapered pant legs that make my legs look like they belong to a short, dumpy Tim Burton character.
Couldn't be bothered sending it back again for repairs. The effort and costs of postage were just too much. I'm just wearing the cost of the suit as a terrible lesson to not order cheap overseas.
I'm pretty sure these suits aren't tailored as per their claim, and they just have a few generic sizes in stock where they pick the one that matches your largest measurement. If you're of straight, slender build, their outfits may be okay. If you've got anything close to curves, don't bother.