I was a Remzi and Shen patient throughout all the steps and complication processes for years. For me, Shen was not helpful. I liked him the first visit because he seemed confident and had several ideas of attack to share. After that, countless long trips to Cleveland, he sort of treated me like a number and didn't listen well to my problems and was really short with me. I think this was because we weren't making progress. I've heard a lot of people beating pouch leaks/sinuses though, so don't let this discourage you. Surely, I was just on eof the unlucky ones
As for the trip, I'm afraid you will most likely need to budget for multiple trips there until the problem is resolved. It's a process where he may cut/drain it, clean it, put in a drain, etc. but you'll need to go back regularly to see how it's progressing. For the first trip though, you might as well definitely give them a call and ask for a scope to be scheduled the next day so that you aren't stuck there a long time waiting for a spot to open, or need to fly back a week later. If they do not comply, just get serious with him that you need him to squeeze you in while you're in town. They've made these exceptions for me before since i'm 1000 miles away.
I believe the cheaper hotel right next to the clinic is called The Guesthouse (owned by double tree). It's nothing to get excited about and will cost around $100 per night, but you wont need a car. After going many times, I found it more affordable to just get a cheap hotel somewhere else in CLE and make the drive to the appointments each day with a cheap rental car. The Guesthouse is a good choice the first time though since you'll be right there. I know it sucks paying for the trip and hotel, etc. but just remind yourself that you can't put a price on your health and it's money well spent if you can get things worked out and back to a normal life. Plus, you can deduct travel and hotel expenses for medical reasons on your taxes
Quick final point of advice... if you do have to make multiple trips to Cleveland until your pouch issue is resolved, try not to have a mindset of "i can't enjoy my life until these trips are done with and i'm fixed" because then you could always just be waiting for something before you can "get going" with life. This is a mistake I made. I kept thinking.. "ok, 6 more months" or "3 more visits" etc. but really, I should have just tried to live my life in between those visits. I know this is easier said than done if you feel like crap, but at least just take the mindset of this being your life now, and not just when trips to Cleveland are over.