I visited her in October (I think?) and had a similar experience. She was my first (and only to this date) TS punt - she even joked that she found it funny that so many guys choose her for their first time given that she is so big (and big she was)!
It was easy to arrange and set up, I believe I booked my slot the day before. Took me £200 for 1 hour, which included £20 extra for the full service (not sure what it included really).
Flat in Paddington was easy to locate and go to. She was there by herself and it was nice and clean - had a bit of a brothel vibe, e.g. red curtains, bedding and lights, wonder why? - I think some of her cam videos are from there.
She's got great English as OP said though I wasn't very talkative initially

I was a bit too phased by her dong, I mean... it's big! She made me feel very comfortable though, started me off with a BJ, then laid on the bed and presented herself to me, asking "Do you wanna taste me?". And I did, though it felt a bit too surreal so I barely remember anything! Next thing I know, I'm on my back with a pillow under my bum. She rimmed me slowly, looking into my eyes. Gotta admit, it felt weird, but nice! She then started blowing me again while propping a finger or two in my bum. A couple of minutes later, time for the real deal. To be perfectly honest, I don't even know how much she managed to fit in, but she was slow, gentle and made sure I didn't get hurt - it did hurt a couple of times, but she stopped immediately and waited a bit before proceeding again. Maybe 5 or 10 minutes later, she was simultaneously fucking and wanking me - gotta admit, I had saved up for this as I was very excited so it didn't really take much to make me pop! - and I shot the money shot all over myself. Absolutely drenched myself to the point of embarrasment, but she was nice and offered plenty of towels

That must have been probably happened in the first 30 minutes, I remember we chatted for a little bit before going for round 2. I think she facefucked me a little, but I wasn't really receptive at that point (kinda started thinking WTF am I doing here haha). Still, I wanted to get my money's worth like the stingy bastard that I am

proceeded to ride her for a bit, followed by some doggy. At that point, I think my bum gave out and I decided to call it a day so I just told her we should take a quick break. Luckily for my bum, we were near the 1h mark, so we never resumed.
Had showers before and after. All in all, a
positive experience for me though I'm not sure she's my type. Despite feeling a bit weird there and thinking I'd never go back, this lockdown has made me think about that experience on more than a few occasions

still, I probably won't visit her for my next punt, I want to look around and see what else is out there. She is pricey, but she is worth it. Super attentive, friendly, she aims to please and she knows how to do it. I'd definitely recommend it even for your 1st experience though... beware! It is big
