Jules
Glad to hear your booked in at TG and hope you love it as much as everyone else does.
I've read a LOT of just back reports on my Bali forum and have never heard of horse riding through the rice fields. I understand that the new posh rooms are not owned by Tegal Sari, however, they are managing them.
Legian Beach Hotel is getting a few bad reports lately on my forum and trip advisor... superior rooms facing walls and car parks not to mention the ill mannered reception staff. People say you only sleep in your room but to me having a decent room is an important part of a great holiday. If it was a cheap and cheerful hotel with prices to match you understand and put up with it... but some of the rooms no longer match the prices they are commanding... it's all about location.
The trick is if you have booked through a travel agent and have accommodation vouchers is to withhold them until you sight the room, without the vouchers the hotel doesn't get paid. I did this with Griya Santrian and it worked (well...kind of) however, you have to be prepared to walk away and find somewhere else, which I was.
Enjoy the Alam Kul Kul
Edit I have a photo of Tegal Sari which clearly marks the rooms 19 20 21 22 23 & 24. PM me with your email address and I'll send it. I do have other photos but they are almost the same as their web site photos.