I recently replaced the front pair of Continentals with a pair of Accelera Phi 235/40 R19 Y.
The rears remain Contis.
The fronts were legal, but worn on the inner edge (OK, no surprises there...) and were on the car when I bought it last November, so I don't know what mileage they have done.
I have always been happy to pay a premium for a brand name (usually Michelin).
I don't drive at 10/10ths anywhere, I am on-call for an emergency service and use the car to attend incidents where life is at risk, so there is urgency, but I'll always arrive safely rather than quickly (means I am in the right frame of mind when I arrive too
The 159TI has the best "feel" of any front drive saloon I have driven, all the more impressive considering the weight of the car with a 1.9 diesel lump...
The Continentals felt perfectly fine (2.5mm across the majority of the tread) but I went to Blackcircles.com to get them replaced.
I paid £219 for the pair, fitted.
It took 2 days for the local agent to get them in stock, but they couldn't have been more helpful when it came to fitting.
At the same time as getting the tyres fitted, I had the suspension settings adjusted to those recommended here.
Given the recent wet weather, driving through standing water and on damp surfaces, I expected to notice a deteriation in feel or grip - that has not been my experience, and though getting new "budget" tyres at the same time as getting the suspension sorted means I will never know which had greatest effect, I have to say my verdict is;
Acceleras and suspension adjustment leaves the car feeling and gripping as well as ever.
I had figured that I would put Continentals on if I didn't like the Acceleras, but I am 100% happy and will be keeping them
Tyre/road noise seems to have reduced slightly too.