Id go for a baxi over Worcester Bosch. Little bit more expensive but totally bombproof ime.
Worcester Bosch is just a badge on the boiler these days - they aren't what they used to be in terms of longevity
Kind of agree, as brands mean little to me. Brother got a Worcester Bosch and has been a total piece of crap, could've been in the install in an old property, 2 heat exchangers failed. Maybe unlucky, just a bad one. Had a Baxi in my last house for years and it was no bother at all. The Siemens wireless stat that the installer fitted was complete garbage though. Currently living in a 10 year old Persimmon house now, it is fitted with the cheapest of everything. The boiler has been spot on though, its an Ideal Logic, which after reading seems like it might be a pretty good value item compared to a WB, was expecting it to be garbage, just not as flash looking, in a cupboard so couldn't care less.
My mum's new build was more upmarket and that came with a Baxi, that's about 16 years old and has just had one minor repair.
When I was reading up on it years ago when I got the Baxi fitted in my previous house, at the time read WB were overrated, the best was Vaillant. These were more expensive at the time so got a Baxi. These are all combi boilers.