Just my 2p but...I have one of the last of the proper Defenders and until we got the Ineos out family car was an L663 Defender which was catastrophically unreliable, (driveshaft 42k, engine 40k, turbos 40k, craksharft pulley 30k, several batteries and electrical faults) the Ineos is far better. I wasn't that impressed with the dealer, but have had a few minor warranty repairs which were dealt with easily. My local dealer closed so now its a 2 hour journey to the next one, but its not the end of the world, I could get it done locally but prefer to put in a little effort to ensure theres no question on the warranty.
Steering is absolutely not an issue for us and easy to get used to, my Mrs uses her old Defender regularly over the 10 years we've had it so jumping in the Ineos is easy, she absolutely loves it. We live on a farm so its great there, but mostly its on the road doing the school runs etc.
It does, like any car, have its flaws, but I've had many low run cars over the years - 10 Lotus, Alfa 4C, McLaren etc and all these cars had a few finish issues, but kind of goes with the territory. I think the Ineos is actually better put together than all of them, which for a new company is pretty impressive in myu opinion.
I think it comes down to perspective. With some of the cars I've had in the past and suffering with the new LR reliability and dealer issues, the Ineos feels like a step forward. If youre coming from something more mainstream then perhaps it may be quite frustrating.