Problems with stainless steel V2A? Experiences?

Hello everyone,
I am currently getting quotes for French balconies and balcony railings. One metalworker gave me an offer with V2A stainless steel, brushed finish, another says that the quality (alloy?) of V2A has deteriorated significantly and that one should definitely use V4A instead.
I therefore asked the first metalworker if V2A is really durable or rust-free, and he said they have had good experiences with this material for more than 20 years.
Have you also heard of problems with V2A or can you understand such concerns?
I am a bit desperate, also because V4A makes a big price difference.
Thank you very much for your feedback!

V2A can actually rust (e.g. contact rust, surface rust). With proper processing, however, this is not an issue. I would not use V4A.

V2A is, for example, 1.4301 and this is suitable for normal outdoor areas. In coastal or industrial environments, I would opt for something of higher quality. It is important during processing to strictly separate the two work areas, normal steel and stainless steel, and also to use separate tools.

Thanks for your tips!

At the seawater and on the ship 4a, inland 2a is sufficient. Polished is more rust-resistant than matte ground. If there is rust, Unipol, cloth, done.

The designations V2a and V4a include different alloys. Therefore, V2a is not always the same as V2a.