I've heard good things about stringsshop at sukhumvit 24 doing guitar set up.

I heard they offer reasonable price and really put in their effort and knows what they're doing.

Is this true? has anyone been there before and would recommend them too?

would be nice if you could tell me there average price ranging as well.

planning on going there for a major clean up and major set up

on a second-handed fender stratocaster I just bought.

any reply will be highly appreciated. thank you : )

If you have already heard this good news before then I would suggest just going there and doing it. Even if people here on TV reply you always get 50/50 stories. Just go in, talk with them and if you feel good with them then do it mate.