My close friend is driving a saga BLM and I get to drive it every now and then.
I drove it more than 1000km and spend reasonable hours in it.

My comments are as follows-

Saga BLM is a good car for its price. It is very cheap and it is quite a bargain because you can get a fairly big car plus more than enough headroom. In other words, it's a budget car. Having said that, i never fail to have leg cramp on a long journey due to the position of the pedal. For some reasons, the brake pedal is set too high for me.

I have a sneo at home, surprisingly with my height, i feel more at home in my neo. I reckon the reason is that neo allows me to sit further to the back.

As for the performance, i am driving the 1.3 AT. The car is extremely sluggish and quite a torture to drive. The auto tranny appears to be sleeping all the time and only starts working after .5 - 1sec after you step on the gas pedal.

Handling wise, the car feels light and doesn't give me the confidence in high speed cornering, unlike the sneo.

Mileage quite bad but that is subjective because i had to accelerate quite often to keep up with the road traffic (especially on the faster lanes).

Bottomline is, Saga BLM is a good point A to B car for the price.
But if you start comparing, to me, Saga BLM does not have any advantage over either toyota or honda (again, apart from the price).

If you don't like slow car, try to stay away.