Party wall consent letter from neighbour - should I do anything before consenting?

[Roundaboot]

The house next door (adjoining semi) has been empty for about a year, and has recently been bought. The new owner came to introduce himself and said he'd be doing lots of renovation before moving in. He seemed polite and pleasant and I'm happy that the house and garden are getting some much needed work!
A couple of days ago, I got a letter from him asking for party wall consent for the loft conversion that he's planning. I'm no expert but from what I can see from the plan, I've got no objection. However, as I am no expert and I've never had one of these letters before I'm wondering if I should take any advice (solicitor? surveyor?) before consenting.
What's usual (and sensible!) in these situations?

If you are basically happy with the proposal then he pays for a surveyor to act for both sides. They will take photos of current condition of walls etc on both sides, and draw up an agreement about the work, which can include things like agreed hours.
We had neighbours who just knocked down a shared wall leaving our house open to the sky with no agreement and it ended up with a surveyor for each side plus an adjudicator and it cost them tens of thousands to put right plus I still wouldn’t piss on them if they were on fire so be thankful your neighbour wants to do it by the book.

The party wall notice will give you the option to appoint an independent surveyor of your choice which your neighbour has to pay for. You might prefer this option.

Thanks both. I've done a little research and spoken to a surveyor and I think I'm going to dissent to the notice so that a surveyor gets appointed and an agreement drawn up. As I understand it, if I just consent now, he can crack on with the work with no survey being done, which just doesn't feel right to me.
I do feel a bit guilty as I've had a call and a couple of texts from my neighbour and he's clearly keen to get my consent so work can start and by dissenting it'll slow things down for him and cost him more money for the survey but I feel like I need a) more information about what the work actually entails and the potential impact on my house and b) some protection if anything goes wrong.
He seems like a good guy so I hope he understands that!