I've been looking at both and dislike a lot of the engineered finishes as they look a bit 'false' although there are a few I could go for.
I've read there a benefits of engineered. I'd be laying it on concreted downstairs and chipboard upstairs.
Anyone have any experience/knowledge in solid vs engineered wood flooring?
yep - spent years selling it and went alone fitting it for a while.
There are two types of engineered - engineered solid (one material in lots of layers, cross grained) and engineered floating (normally a layer of good wood, typically on to 2 layers of soft wood, cross grained)
Most of the former are very good, the latter there is good and bad but far easier to fit as you float them like a laminate - Both of our wooden floors at home are like this due to sub floor problems
The other type is Solid (one piece) - parquet, oak planks etc
All can be fitted on to concrete with different types of fixing and prep work.
The benefits of true engineered (made of the same wood in many layers) is that it is the most stable of wooden floors and is suitable for floors below ground level. It's generally not cheap
The benefits of the float solution is that it's normally cheaper, goes over an underlay, not much sub floor prep involved and much easier for DIY, hence the big savings. I can help with a few tips on that if you go that route. Avoid the really cheap & shit floors, you get what you pay for.
The benefits of solid is that it can be sanded down a little more than a true engineered, although it depend on the thickness, not of the floor but of the layer to the t&g. It's a bit of a false thing to go for though as you really don't sand them down unless you are in the property 15, 20 + years and then you may only do it once or twice. you can also get a much better choice of styles etc.