I`ve got my T300 for round about 270€ and I love it, I think I couldn`t get a better machine for the money. I don`t want to repeat the features from above but for the small buck, it`s really a lot good stuff and the frame is nice, heavy and very stable.
Btw, you don`t need that fat image file to update to 1.52, all you need is the folder on top and the screen file from the bottom ;)
But ok, nothing is perfect, so after z-alignment the right side is 2mm to low, rised it with the wheel on top of the lead scew till the hightmap is perfectly leveled, wrote down the clicks for the next time and I`m are good to go. The bed is too hight in the middle, I've used some shims first, but that's not perfect and the shims are really hard to set in place, ordered some of these orange silicon spacers to use them instead of the original plastic spacers and now my bed is nicely flat at all.
For the small buck I feel a bit like I`ve stolen it and even for the normal price it would be a really good machine, the hardware with it`s linear rails, the speed, high flow, hight temperature. You will need a good CoreXY to top it. OK, bamboo lab with it`s sensorless bed leveling and mulicolor / multifilament ability and comunity is another number, but for more money and only in this points, without these points, the T300 would win thhe race.